C12 570bhp

C12MARINE PROPULSION

578 mhp (570bhp) 425 bkW

Image shown may not reflectactual Engine

SPECIFICATIONSI-6, 4-Stroke-Cycle-DieselEmissions...................................................................... IMODisplacement.......................................... 12.0 L (732.28 in3)Rated Speed................................................................ 2300Bore....................................................... 130.0 mm (5.12 in)Stroke.................................................... 150.0 mm (5.91 in)Aspiration........................................................................ TAGovernor.............................................................. ElectronicCooling System.......................................... Heat ExchangerWeight, Net Dry (approx.)...................... 1,076 kg (2,372 lb)Refill Capacity

Cooling System.....................................45.0 L (11.9 gal)Lube Oil System..................................... 28.0 L (7.4 gal)

Oil Change Interval.................................................. 250 hrsCaterpillar Diesel Engine Oil 10W30 or 15W40Center Sump Oil Pan

Rotation (from flywheel end)....................................... CCWFlywheel and Flywheel Housing.........................SAE NO. 1Flywheel Teeth

STANDARD ENGINE EQUIPMENT

Air Inlet SystemCorrosion resistant sea water aftercooler; aircleaner/fumes disposal system (closed)Control SystemElectronic governing, Cold mode start strategy, Powercompensation for fuel temperature,Programmable lowidle,Electronic diagnostics and fault logging, Engine andtransmission monitoring (speed, temperature, pressure),Fuel/air ratio control.Cooling SystemSelf priming gear driven sea water pump with rubberimpeller, gear driven jacket water pump, integral heatexchanger/expansion tank with removable tube bundleand replaceable copper-nickel tubes, thermostat andhousingExhaust SystemWatercooled exhaust manifold and turbocharger, roundflanged outletFuel SystemFuel priming pump, fuel transfer pump, fuel filter - RH orLH service, flexible fuel linesInstrumentationElectric service meter

Lube SystemCrankcase breather, engine oil cooler; oil filter - RH or LHservice, oil level gauge - RH or LH service, oil filler,center sump oil pan, gear driven oil pumpMounting SystemFront supportPower Takeoffs11 tooth spline SAE A hydraulic pump drive, singlegroove craknshaft pulleyProtection System12 or 24 volt electronic shutdown (energized-to-run)

GeneralVibration damper and guard, Caterpillar yellow paint,lifting eyes, variable engine wiring, customer wiringconnector and service tool connectorISO CertificationFactory-designed systems built at CaterpillarISO 9001:2000 certified facilities

1 22 November 2011 7:06 PM

C12 MARINE PROPULSION578 mhp (570 bhp) 425 bkW

PERFORMANCE CURVES

D-RATING - DM7387-03

Engine Power kW

Engine Torque N•m

BSFC g/kW-hr

Engine Speed rpm

Metric

Maximum Power

Prop Demand- - - - - - -

Maximum Power DataEngine

Speed rpmEngine

Power kWEngine

Torque N·mBSFC

g/kW-hrFuel Rate

L/hr

2300 425 1764 208.8 105.82200 425 1845 209 105.92100 425 1933 207 104.92000 425 2029 203.2 102.91900 425 2137 199.4 101.01800 425 2255 198 100.31700 425 2388 201.2 102.01600 425 2537 207.6 105.21500 425 2706 214.4 108.71400 423 2884 221.2 111.51300 264 1938 224.4 70.61200 211 1683 223 56.21100 163 1418 219.4 42.71000 128 1225 213.3 32.6900 106 1120 200.6 25.2

Prop Demand DataEngine

Speed rpmEngine

Power kWEngine

Torque N·mBSFC

g/kW-hrFuel Rate

L/hr

2300 425 1765 208.8 105.82200 371.9 1614 210.3 93.22100 323.5 1471 220 84.82000 279.4 1334 227.8 75.91900 239.6 1204 219.4 62.71800 203.7 1081 209.7 50.91700 171.6 964 209.2 42.81600 143.1 854 211.7 36.11500 117.9 751 214.1 30.11400 95.8 654 216.3 24.71300 76.7 564 218.6 20.01200 60.4 480 221.9 16.01100 46.5 404 228.2 12.61000 34.9 334 248.2 10.3900 25.5 270 317.5 9.6600 7.5 120 939.7 8.5

NOTE: Prop demand data is a cubic prop demand curve with 3.0exponent for displacement hulls only.

2 22 November 2011 7:06 PM


PERFORMANCE CURVES

D-RATING - DM7387-03

Engine Power hp

Engine Torque lb ft

BSFC lb/hp-hr

Engine Speed rpm

English

Maximum Power

Prop Demand

- - - - - - -

Maximum Power DataEngine

Speed rpmEngine

Power hpEngine

Torque lb ftBSFC

lb/hp-hrFuel Rate

gph

2300 570 1301 .343 27.92200 570 1361 .344 28.02100 570 1426 .340 27.72000 570 1497 .334 27.21900 570 1576 .328 26.71800 570 1663 .326 26.51700 570 1761 .331 26.91600 570 1871 .341 27.81500 570 1996 .352 28.71400 567 2127 .364 29.51300 354 1429 .369 18.71200 283 1241 .367 14.81100 219 1046 .361 11.31000 172 904 .351 8.6900 141 826 .330 6.7

Prop Demand DataEngine

Speed rpmEngine

Power hpEngine

Torque lb ftBSFC

lb/hp-hrFuel Rate

gph

2300 570 1302 .343 27.92200 499 1190 .346 24.62100 434 1085 .362 22.42000 375 984 .375 20.11900 321 888 .361 16.61800 273 797 .345 13.41700 230 711 .344 11.31600 192 630 .348 9.51500 158 554 .352 8.01400 128 482 .356 6.51300 103 416 .359 5.31200 81 354 .365 4.21100 62 298 .375 3.31000 47 246 .408 2.7900 34 199 .522 2.5600 10 89 1.545 2.2

NOTE: Prop demand data is a cubic prop demand curve with 3.0exponent for displacement hulls only.

3 22 November 2011 7:06 PM


RATING DEFINITIONS AND CONDITIONS

D Rating (Intermittent Duty) -% Load Factor: up to 50% Time at Rated RPM: up to 16Typical Time at Full Load: 2 hours out of 12Typical Hour/Year: 1000 to 3000Typical Applications: For vessels operating at rated loadand rated speed up to 16% of the time (up to 50% loadfactor). Typical applications could include but are notlimited to vessels such as offshore patrol boats,customs boats, police boats, some fishing, fireboats, orharbor tugs. Typical operation ranges from 1000 to3000 hours per year.

Powerat declared engine speed is in accordance withISO3046-1:2002E. Caterpillar maintainsISO9001:1994/QS-9000 approved engine test facilitiesto assure calibration of test equipment. Electronicallycontrolled engines are set at the factory at theadvertised power corrected to standard ambientconditions. The published fuel consumption rates are inaccordance with ISO3046-1.Fuel ratesare based on fuel oil of 35º API [16ºC (60ºF)] gravityhaving an LHV of 42 780 kJ/kg (18,390 Btu/lb) whenused at 29ºC (85ºF) and weighing 838.9 g/L (7.001lb/U.S. gal). Additional ratings may be available forspecific customer requirements. Consult your Caterpillarrepresentative for additional information.

Performance data is calculated in accordance with tolerances and conditions stated in this specification sheet and isonly intended for purposes of comparison with other manufacturer's engines. Actual engine performance may varyaccording to the particular application of the engine and operating conditions beyond Caterpillar's control.

Power produced at the flywheel will be within standard tolerances up to 49º C (120º F) combustion air temperaturemeasured at the air cleaner inlet, and fuel temperature up to 52º C (125ºF) measured at the fuel filter base. Powerrated in accordance with NMMA procedure as crankshaft power. Reduce crankshaft power by 3% for propeller shaftpower.

4 22 November 2011 7:06 PM


DIMENSIONS

Right Side Front

Engine Dimensions

(1) Length to Flywheel Housing 1573.9 mm 61.96 in

(2) Width 968.6 mm 38.13 in

(3) Height 1008.7 mm 39.71 in

Weight, Net Dry (approx) 1076 kg 2,372 lb

Note: Do not use for installation design. See generaldimension drawings for detail (Drawing # null ).

5 22 November 2011 7:06 PM


Performance No.: DM7387-03

Feature Code: C12MC27

U.S. Sourced

18910027

22 November 2011

©2011 Caterpillar

All rights reserved.

Materials and specifications are subject to change without notice.

The International System of Units (SI) is used in this publication.

CAT, CATERPILLAR, their respective logos, "Caterpillar Yellow," the "Power Edge" trade dress,as well as corporate and product identity used herein, are trademarks of Caterpillar and may

not be used without permission.

6


Performance DataD-RATING - DM7387-03 Aftercooler Temperature 0.0 ºC (32.0 ºF)

Metric

EngineSpeed rpm

EnginePower kW

BSFCg/kW-hr

Fuel RateL/hr

Intake ManfPress kPa

Intake AirFlow

m3/min

Exh ManifTemp ºC

Exh GasFlow m3/min

EngineTorque N·m

Zone Limit Curve:4 2300 424.8 208.8 105.8 196.2 32.1 526.6 74.1 1,7642000 425.1 203.1 102.9 184.9 27.7 545.1 66.3 2,0291800 425.1 199.1 100.9 177.2 24.5 592.4 63.5 2,2551500 270.1 209.7 67.5 91.1 14.7 615 41.1 1,7191200 185.3 217.7 48.1 50.4 9.5 614.6 27.3 1,475900 105.5 200.6 25.2 16.9 5.4 548.3 13.5 1,120

Prop Demand Data: 2300 425 208.8 105.8 196.3 32.1 526.8 74.1 1,7652000 279.4 227.8 75.9 102.1 19.9 478.2 46.3 1,3341700 171.6 209.2 42.8 43.5 12.2 458 28.8 9641400 95.8 216.3 24.7 15.8 8.3 375 17.6 6541100 46.5 228.2 12.6 3.4 5.8 261.3 10.4 404600 7.5 939.7 8.5 3.9 2.8 146.4 4.1 120

Max Power Data: 2300 424.8 208.8 105.8 196.2 32.1 526.6 74.1 1,7642000 425.1 203.2 102.9 184.9 27.7 545.1 66.3 2,0291800 425.1 198 100.3 177.2 24.5 592.4 63.5 2,2551500 425.1 214.4 108.7 199.8 22.8 693.1 67 2,7061200 211.4 223 56.2 66.3 10.5 658.4 31.8 1,683900 105.5 200.6 25.2 16.9 5.4 548.3 13.5 1,120

Break Mean Effective Pressure .....................................................................................................1856 kPa

Heat Rejection to Coolant (total) ..................................................................................................... 266 kW

Heat Rejection to Aftercooler .............................................................................................................82 kW

Heat Rejection to Exhaust (total) .....................................................................................................319 kW

Heat Rejection to Atmosphere from Engine .....................................................................................41 kW

NOTE: Prop demand data is a cubic prop demand curve with 3.0 exponent for displacement hullsonly.

22 November 2011 7:06 PM


Performance DataD-RATING - DM7387-03 Aftercooler Temperature 0.0 ºC (32.0 ºF)

English

EngineSpeed rpm

EnginePower hp

BSFClb/hp-h

Fuel Rategph

Intake ManfPress in-hg

Intake AirFlow cfm

Exh ManifTemp ºF

Exh GasFlow cfm

EngineTorque lb ft

Zone Limit Curve:4 2300 570 0.343 27.9 58.1 1,133.6 980 2,616.8 1,3012000 570 0.334 27.2 54.8 978.2 1,013 2,341.4 1,4971800 570 0.327 26.7 52.5 865.2 1,098 2,242.5 1,6631500 362 0.345 17.8 27.0 519.1 1,139 1,451.4 1,2681200 248 0.358 12.7 14.9 335.5 1,138 964.1 1,088900 141 0.33 6.7 5.0 190.7 1,019 476.7 826

Prop Demand Data: 2300 570 0.343 27.9 58.1 1,133.6 980 2,616.8 1,3022000 375 0.375 20.1 30.2 702.8 893 1,635.1 9841700 230 0.344 11.3 12.9 430.8 856 1,017.1 7111400 128 0.356 6.5 4.7 293.1 707 621.5 4821100 62 0.375 3.3 1.0 204.8 502 367.3 298600 10 1.545 2.2 1.2 98.9 296 144.8 89

Max Power Data: 2300 570 0.343 27.9 58.1 1,133.6 980 2,616.8 1,3012000 570 0.334 27.2 54.8 978.2 1,013 2,341.4 1,4971800 570 0.326 26.5 52.5 865.2 1,098 2,242.5 1,6631500 570 0.352 28.7 59.2 805.2 1,280 2,366.1 1,9961200 283 0.367 14.8 19.6 370.8 1,217 1,123 1,241900 141 0.33 6.7 5.0 190.7 1,019 476.7 826

Break Mean Effective Pressure ........................................................................................................269 psi

Heat Rejection to Coolant (total) ......................................................................................... 15127 Btu/min

Heat Rejection to Aftercooler .................................................................................................4669 Btu/min

Heat Rejection to Exhaust (total) .........................................................................................18141 Btu/min

Heat Rejection to Atmosphere from Engine .........................................................................2309 Btu/min


C12 MARINE PROPULSION

578 mhp (570 bhp) 425 bkW


Technical Data

Feature Code : C12MC27 DM7387-03Specifications

Number of cylinders & arrangement In-Line 6Cycle 4-StrokeCombustion System Direct InjectionAspiration type Turbocharged AftercooledBore 130.0 mm 5.12 inStroke 150.0 mm 5.91 inDisplacement 12.0 L 732.28 in3

Compression ratio 16.0:1Firing order 1-5-3-6-2-4Rotation (from flywheel end) CCWAftercooling type SCACGovernor type ElectronicExhaust manifold type WET

Cooling SystemCooling System type Heat ExchangerEngine only cooling system capacity (includes heat exchanger) 45.0 L 11.9 galMaximum sea water inlet temp to heat exch. (heat exch.) 32 Deg C 90 Deg FMaximum sea water strainer pore size 1.6 mm .0625 inMaximum jacket water temp to aftercooler (keel cooled)Sea water inlet restriction limits 24 kPa 96.35 in.H2O

Air Intake SystemAir intake flow rate 32.1 m³/min 1,133.6 cfmMaximum air filter intake temperatureMaximum intake restriction with clean filter 3.70 kPa 14.90 in. waterMaximum intake restriction with dirty filter 6.5 kPa 26.1 in. water

Exhaust SystemMaximum system backpressure (at rated power) 10.00 kPa 40.20 in. waterExhaust flow rate at rated power (at rated power) 74.1 m³/min 2,616.8 cfmExhaust manifold temperature (at rated power) 526.8 º C 980.2 º FExhaust stack temperature (at rated power) 379.5 º C 715.1 º FMaximum static bending moment on exhaust connection

EmissionsCertification Agency (EPA, CCNR, IMO) IMO

Heat RejectionHeat rejection to atmosphere (at rated power) 41 kW 2,332 Btu/minHeat rejection from exhaust (at rated power) 319 kW 18,141 Btu/minHeat rejection to jacket water (at rated power) 266 kW 15,127 Btu/min

Lube SystemRefill volume with filter change (standard equipment) 28.0 L 7.4 galMinimum oil pressure at rated speedMinimum oil pressure at low idleRecommended oil type and grade Refer to Fluid RecommendationsOil cooler typeCrankcase ventilation type


578 mhp (570 bhp) 425 bkW


Fuel SystemGovernor type ElectronicFuel system type Electronic unit injectionNormal fuel pressureMaximum fuel temperature (at transfer pump inlet)Maximum fuel supply restriction 30.00 kPa 8.90 in. HgMaximum fuel return line restriction 27.00 kPa 8.00 in. HgMaximum fuel flow to transfer pumpMaximum fuel transfer pump lift (without priming pump)

Cooling SystemCooling system type Heat ExchangerEngine only cooling system capacity (includes heat exchanger) 45.0 L 11.9 galCooling system capacity 45.0 L 11.9 galMaximum sea water inlet temp

Mounting SystemCenter of gravity dimensions (x)Center of gravity dimensions (y)Center of gravity dimensions (z)Crankshaft endplayCrankshaft endplay toleranceMaximum dynamic axial force on crankshaftFlywheel housing size (SAE #) SAE NO. 1Maximum installation angleMaximum operating angleMass moment of inertia (x)Mass moment of inertia (y)Mass moment of inertia (z)Hydraulic pump drive SAE A, 57 ft-lbs max torqueMaximum power from front of engine 910 Nm 671 lbftWeight (dry) 1,076 kg 2,372 lbWeight (wet)

Electric Starting SystemRecommended battery capacity (CCA) above 0 deg C


578 mhp (570 bhp) 425 bkW


I-6, 4-Stroke-Cycle-DieselEmissions IMODisplacement 12 L (732 cu in)Rated Engine Speed 2300Bore 130 mm (5.1 in)Stroke 150 mm (5.9 in)Aspiration Turbocharged AftercooledGovernor ElectronicCooling System Heat ExchangerWeight, Net Dry (approx.) 1,076 kg 2,372 lbRefill Capacity

Cooling System 45 L (12.0 U.S. gal)Lube Oil System 28 L (7.5 U.S. gal)

Oil Change Interval 250 hrsCaterpillar Diesel Engine Oil 10W30 or 15W40Center Sump Oil Pan

Rotation (from flywheel end) CounterclockwiseFlywheel and Flywheel Housing SAE No. 1Flywheel Teeth 113


General Dimension Drawing

No General Dimension Drawing data is currently available for the selected section.


i02101796

Maintenance Interval ScheduleNote: Ensure that the Safety Information, warnings,and instructions are read and understood beforeoperation or maintenance procedures are performed.

Note: Use fuel consumption, service hours, orcalendar time, WHICHEVER OCCURS FIRST ,in order to determine the maintenance intervals.Engines that operate in severe operating conditionsmay require more frequent maintenance. Failureto adhere to proper maintenance intervals mayresult in degradation of engine performance and/oraccelerated engine component wear.

Before each consecutive interval is performed, allof the maintenance requirements from the previousinterval must also be performed.

When RequiredAftercooler Core - Clean/TestBattery - ReplaceBattery or Battery Cable - DisconnectEngine - CleanEngine Oil Level Gauge - CalibrateEngine Storage Procedure - CheckFuel System - PrimeHeat Exchanger - InspectSea Water Strainer - Clean/InspectZinc Rods - Inspect/Replace

DailyClosed Crankcase Ventilation (CCV) Filter ServiceIndicator - Inspect

Cooling System Coolant Level - CheckEngine Air Cleaner Service Indicator - InspectEngine Oil Level - CheckFuel System Primary Filter/Water Separator - DrainMarine Transmission Oil Level - CheckWalk-Around Inspection

Every 50 Service Hours or WeeklyAftercooler Condensate Drain Valve - Inspect/CleanSea Water Strainer - Clean/InspectZinc Rods - Inspect/Replace

Initial 500 Hours (for New Systems, RefilledSystems, and Converted Systems)Cooling System Coolant Sample (Level 2) - Obtain

Every 500 Service HoursCooling System Coolant Sample (Level 1) - Obtain

Every YearCooling System Coolant Sample (Level 2) - Obtain

First 12 750 L (3375 US gal) of Fuel or 250Service HoursEngine Valve Lash - Inspect/AdjustEngine Valve Rotators - Inspect

Every 12 750 L (3375 US gal) of Fuel or 250Service Hours or YearlyAlternator Belt - Inspect/Adjust/ReplaceAuxiliary Water Pump (Rubber Impeller) - InspectBattery Electrolyte Level - CheckCooling System Supplemental Coolant Additive(SCA) - Test/Add

Engine - CleanEngine Air Cleaner Element - Clean/ReplaceEngine Crankcase Breather - CleanEngine Oil Sample - ObtainEngine Oil and Filter - ChangeFuel System Primary Filter (Water Separator)Element - Replace

Fuel System Secondary Filter - ReplaceFuel Tank Water and Sediment - DrainHoses and Clamps - Inspect/ReplaceMarine Transmission Oil Cooler - Clean/Inspect

Every 36 900 L (9750 US gal) of Fuel or 750Service HoursClosed Crankcase Ventilation (CCV) Fumes DisposalFilter - Replace

Every 49 210 L (13 000 US gal) of Fuel or1000 Service Hours or 2 YearsAftercooler Core - Clean/TestEngine Valve Lash - Inspect/AdjustEngine Valve Rotators - InspectHeat Exchanger - InspectTurbocharger - Inspect/Clean

Every 147 630 L (39 000 US gal) of Fuel or3000 Service Hours or 3 YearsAuxiliary Water Pump (Bronze Impeller) - InspectCooling System Coolant (DEAC) - ChangeCooling System Coolant Extender (ELC) - AddCooling System Water Temperature Regulator -Replace

Crankshaft Vibration Damper - InspectEngine Mounts - InspectEngine Speed/Timing Sensors - Check/Clean/Calibrate

Every 246 050 L (65 000 US gal) of Fuel or5000 Service Hours or 5 YearsAlternator - InspectStarting Motor - InspectWater Pump - Inspect

1

Every 295 260 L (78 000 US gal) of Fuel or6000 Service HoursCooling System Coolant (ELC) - Change

Every 378 540 L (100 000 US gal) of Fuel or8500 Service HoursCylinder Head Grounding Stud - Inspect/Clean/Tighten

Overhaul Considerations

2

i02015199

Refill Capacities andRecommendationsEngine Oil

NOTICEThese recommendations are subject to change with-out notice. Contact your local Caterpillar dealer for themost up to date fluids recommendations.

API Oils

The Engine Oil Licensing and Certification System bythe American Petroleum Institute (API) is recognizedby Caterpillar. For detailed information about thissystem, see the latest edition of the “API publicationNo. 1509”. Engine oils that bear the API symbol areauthorized by API.

g00546535Illustration 1Typical API symbol

Diesel engine oils CC, CD, CD-2, and CE havenot been API authorized classifications since 1January 1996. Table 1 summarizes the status of theclassifications.

Table 1

API Classifications

Current Obsolete

CI-4(1), CH-4(1), CG-4(2),CF-4(3) CE

CF (4) CC, CD

CF-2(5) CD-2(5)

(1) API CH-4 and CI-4 oils are acceptable if the requirementsof Caterpillar’s ECF-1 (Engine Crankcase Fluidspecification-1) are met. CH-4 and CI-4 oils that have notmet the requirements of Caterpillar’s ECF-1 Specificationmay cause reduced engine life.

(2) API CG-4 oils are acceptable for all Caterpillar diesel engines.When the API CG-4 oils are used, the oil drain interval shouldnot exceed 75 Percent of the standard oil drain interval foryour engine.

(3) API CF-4 oils are not recommended for Caterpillar 3500 seriesdiesel engines. For all other commercial diesel engines, the oildrain interval should not exceed 50 percent of the standard oildrain interval for your engine.

(4) API CF oils are not recommended for Caterpillar 3500 Seriesand smaller Direct Injection (DI) diesel engines.

(5) API CF-2 and CD-2 oils are classifications for two-cycle dieselengines. Caterpillar does not sell engines that utilize the CD-2and the API CF-2 oils.

Note: When oil meets more than one APIclassification, the applicable footnote is determinedby the highest API classification that is met.

Example – An oil meets both the API CH-4 and theAPI CF oil classifications. In this case, the API CH-4applies.

Cat DEO (Diesel Engine Oil)

Caterpillar Oils have been developed and tested inorder to provide the full performance and servicelife that has been designed and built into CaterpillarEngines. Caterpillar Oils are currently used to filldiesel engines at the factory. These oils are offeredby Caterpillar dealers for continued use when theengine oil is changed. Consult your Caterpillar dealerfor more information on these oils.

Due to significant variations in the quality and inthe performance of commercially available oils,Caterpillar makes the following recommendations:

• Cat DEO (Diesel Engine Oil) (10W-30)

• Cat DEO (Diesel Engine Oil) (15W-40)

Caterpillar multigrade DEO is formulated with thecorrect amounts of detergents, dispersants, andalkalinity in order to provide superior performance inCaterpillar Diesel Engines.

1

Caterpillar multigrade DEO is available in variousviscosity grades that include SAE 10W-30 and SAE15W-40. To choose the correct viscosity grade forthe ambient temperature, see Table 2. Multigradeoils provide the correct viscosity for a broad range ofoperating temperatures.

Multigrade oils are effective in maintaining low oilconsumption and low levels of piston deposits.

Caterpillar multigrade DEO can be used in otherdiesel engines and in gasoline engines. See theengine manufacturer’s guide for the recommendedspecifications. Compare the specifications to thespecifications of Caterpillar multigrade DEO. Thecurrent industry standards for Caterpillar DEO arelisted on the product label and on the data sheetsfor the product.

Consult your Caterpillar dealer for part numbers andfor available sizes of containers.

Note: Caterpillar SAE 15W-40 multigrade DEOexceeds the performance requirements for thefollowing API classifications: CI-4, CH-4, CG-4, CF-4,and CF. The Caterpillar multigrade DEO exceeds therequirements of the Caterpillar specification that isECF-1 (Engine Crankcase Fluid-1). The CaterpillarSAE 15W-40 multigrade DEO passes the followingproprietary tests: sticking of the piston ring, oil controltests, wear tests, and soot tests. Proprietary testshelp ensure that Caterpillar multigrade oil providessuperior performance in Caterpillar Diesel Engines.In addition, Caterpillar multigrade oil exceedsmany of the performance requirements of othermanufacturers of diesel engines. Therefore, this oil isan excellent choice for many mixed fleets. True highperformance oil is produced with a combinationof the following factors: industry standard tests,proprietary tests, field tests, and prior experiencewith similar formulations. The design and thedevelopment of Caterpillar lubricants that areboth high performance and high quality arebased on these factors.

Note: Non-Caterpillar commercial oils are secondchoice oils.

Commercial Oils

Engine Crankcase Fluid Recommendations forall Caterpillar 3500 Series and smaller directinjection (DI) diesel engines

Exceptions to this recommendation are the 3116marine engines and the 3126 marine engines withmechanical unit injection (MUI).

Note: If Caterpillar Multigrade DEO is not used,use only commercial oils that meet the followingclassifications.

• API CH-4 multigrade oils and API CI-4 multigradeoils are acceptable if the requirements ofCaterpillar’s ECF-1 (Engine Crankcase Fluidspecification-1) are met. CH-4 oils and CI-4 oilsthat have not met the requirements of Caterpillar’sECF-1 Specification may cause reduced enginelife.

• API CG-4 multigrade oils are acceptable for allCaterpillar diesel engines. When the API CG-4 oilsare used, the oil drain interval should not exceedthe standard oil drain interval for your engine.

• API CF-4 multigrade oils are not recommendedfor Caterpillar 3500 series diesel engines. For allother smaller commercial diesel engines, the oildrain interval should not exceed 50 percent of thestandard oil drain interval for your engine.

NOTICEIn selecting oil for any engine application, both the oilviscosity and oil performance classification/specifica-tion as specified by the engine manufacturer must bedefined and satisfied. Using only one of these param-eters will not sufficiently define oil for an engine appli-cation.

In order to make the proper choice of a commercialoil, refer to the following explanations:

API CI-4 – API CI-4 oils were developed in orderto meet the requirements of high performancediesel engines that use cooled Exhaust GasRecirculation (EGR). API CI-4 oils are acceptableif the requirements of Caterpillar’s ECF-1 (EngineCrankcase Fluid specification-1) are met.

API CH-4 – API CH-4 oils were developed in orderto protect low emissions diesel engines that use a0.05 percent level of fuel sulfur. However, API CH-4oils may be used with higher sulfur fuels. API CH-4oils are acceptable if the requirements of Caterpillar’sECF-1 (Engine Crankcase Fluid specification-1) aremet.

Note: CH-4 oils and CI-4 oils that have not met therequirements of Caterpillar’s ECF-1 Specificationmay cause reduced engine life.

NOTICEFailure to follow these oil recommendations can causeshortened engine service life due to deposits and/orexcessive wear.

Note: Refer to Special Publication, SEBU6251,“Caterpillar Commercial Diesel Engine FluidsRecommendations” for additional information thatrelates to lubrication for your engine.

2

Lubricant Viscosity Recommendations

The proper SAE viscosity grade of oil is determinedby the minimum ambient temperature duringcold engine start-up, and the maximum ambienttemperature during engine operation.

Refer to Table 2 (minimum temperature) in order todetermine the required oil viscosity for starting a coldengine.

Refer to Table 2 (maximum temperature) in order toselect the oil viscosity for engine operation at thehighest ambient temperature that is anticipated.

Note: Generally, use the highest oil viscosity that isavailable to meet the requirement for the temperatureat start-up.

If ambient temperature conditions at engine start-uprequire the use of multigrade SAE 0W oil, SAE0W-40 viscosity grade is preferred over SAE 0W-20or SAE 0W-30.

Table 2

Engine Oil Viscosities for Ambient Temperatures(1)

Ambient Temperature

Viscosity Grade Minimum Maximum

SAE 0W-20 −40 °C (−40 °F) 10 °C (50 °F)

SAE 0W-30 −40 °C (−40 °F) 30 °C (86 °F)

SAE 0W-40 −40 °C (−40 °F) 40 °C (104 °F)

SAE 5W-30 −30 °C (−22 °F) 30 °C (86 °F)

SAE 5W-40 −30 °C (−22 °F) 50 °C (122 °F)

SAE 10W-30 −18 °C (0 °F) 40 °C (104 °F)

SAE 10W-40 −18 °C (0 °F) 50 °C (122 °F)

SAE 15W-40 −9.5 °C (15 °F) 50 °C (122 °F)(1) Refer to this publication, “Engine Oil” for recommendations ofdiesel engine oil type.

Note: Supplemental heat is recommended below theminimum recommended ambient temperature.

S·O·S Oil Analysis

Caterpillar has developed a tool for maintenancemanagement that evaluates oil degradation and thetool also detects the early signs of wear on internalcomponents. The Caterpillar tool for oil analysis iscalled S·O·S Oil Analysis and the tool is part of theS·O·S Services program. S·O·S Oil Analysis dividesoil analysis into three categories:

• Wear Analysis

• Oil condition

• Additional tests

The wear analysis monitors metal particles, some oiladditives, and some contaminants.

Oil condition uses infrared (IR) analysis to evaluatethe chemistry of the oil. Infrared analysis is also usedto detect certain types of contamination.

Additional tests are used to measure contaminationlevels from water, fuel, or coolant. Oil viscosity andcorrosion protection can be evaluated, as needed.

Refer to Special Publication, SEBU6251, “CaterpillarCommercial Diesel Engine Fluids Recommendations”or contact your local Caterpillar dealer for additionalinformation concerning the S·O·S Oil Analysisprogram.

Lubrication System

The refill capacities for the engine crankcase reflectthe approximate capacity of the crankcase or sumpplus standard oil filters. Auxiliary oil filter systems willrequire additional oil. Refer to the OEM specificationsfor the capacity of the auxiliary oil filter.

Table 3

Approximate Refill Capacities

Compartment or System Liters Quarts

Engine Crankcase with StandardSump 28 30

Lubricating GreaseCaterpillar provides a range of moderate greasesto extremely high performance greases in order toservice the entire line of Caterpillar products thatoperate throughout the wide variety of climates. Fromthis variety of Caterpillar grease products, you willfind at least one of the Caterpillar greases that willmeet or exceed the performance requirements forany machine or equipment application.

Before selecting a grease product for any application,the performance requirements must be determined.Consult the grease recommendations that are madeby the OEM for the equipment when the equipment isoperated in the expected conditions. Then, consultwith your Caterpillar dealer for a list of greases andthe following related characteristics.

• Performance specifications

• Available sizes of containers

• Part numbers

Always choose a grease that meets or exceedsthe recommendations that are specified by theequipment manufacturer for the application.

3

If it is necessary to choose a single grease to usefor all of the equipment at one site, always choosea grease that meets or exceeds the requirementsof the most demanding application. Remember,products that barely meet the minimum performancerequirements can be expected to barely produceminimum parts life. It is false economy to use greasethat was purchased based on the lowest cost perpound. Instead, use the grease that yields thelowest total operating cost based on an analysis thatincludes the costs of parts, labor, and downtime,as well as the cost of the amount of grease that isactually used.

Note: Because some greases are not chemicallycompatible, it is generally recommended to purgeall of the old grease from the joint when switchingfrom one type of grease to another, and/or from onesupplier to another. Consult your supplier in order todetermine if the greases are compatible.

If in doubt, Purge!

Note: All Caterpillar brand name greases arecompatible with each other.

Note: Refer to Special Publication, SEBU6251,“Caterpillar Commercial Diesel Engine FluidsRecommendations” for additional information thatrelates to lubrication for your engine.

FuelDiesel fuels that meet the Caterpillar Specificationfor Distillate Diesel Fuel are recommended. Thesefuels will help to provide maximum engine service lifeand performance. In North America, diesel fuel thatis identified as No. 1-D or No. 2-D in “ASTM D975”generally meet the specifications. Diesel fuels fromother sources could exhibit detrimental propertiesthat are not defined or controlled by this specification.

NOTICEOperating with fuels that do not meet Caterpillar’s rec-ommendations can cause the following effects: start-ing difficulty, poor combustion, deposits in the fuel in-jectors, reduced service life of the fuel system, de-posits in the combustion chamber, and reduced ser-vice life of the engine.

Note: Refer to Special Publication, SEBU6251,“Caterpillar Commercial Diesel Engine FluidsRecommendations” for the Caterpillar Specificationfor distillate fuel and for additional information thatrelates to fuel for your engine.

Refill Capacities (Fuel System)

Refer to the Operation and Maintenance Manual thatis provided by the OEM for capacities of the fuelsystem.

CoolantThe following two coolants are used in Caterpillardiesel engines:

Preferred – Caterpillar Extended Life Coolant (ELC)or a commercial extended life coolant that meets theCaterpillar EC-1 specification

Acceptable – A Caterpillar Diesel EngineAntifreeze/Coolant (DEAC) or a commercialheavy-duty coolant/antifreeze that meets “ASTMD4985” or “ASTM D5345” specifications

NOTICEDo not use a commercial coolant/antifreeze that onlymeets the ASTM D3306 or D4656 specification. Thistype of coolant/antifreeze is made for light duty auto-motive applications.

Caterpillar recommends a 1:1 mixture of waterand glycol. This mixture of water and glycol willprovide optimum heavy-duty performance as acoolant/antifreeze.

Note: Caterpillar DEAC DOES NOT require atreatment with an SCA at the initial fill. Commercialheavy-duty coolant/antifreeze that meets “ASTMD4985” or “ASTM D5345” specifications MAY requirea treatment with an SCA at the initial fill. Read thelabel or the instructions that are provided by the OEMof the product.

In stationary engine applications and marine engineapplications that do not require anti-boil protectionor freeze protection, a mixture of SCA and water isacceptable. Caterpillar recommends a six percentto eight percent concentration of SCA in thosecooling systems. Distilled water or deionized wateris preferred. Water which has the recommendedproperties may be used.

NOTICEAll Caterpillar diesel engines equipped with air-to-airaftercooling (ATAAC) require a minimum of 30 percentglycol to prevent water pump cavitation.

4

Table 4

Coolant Service Life

Coolant Type Service Life

Caterpillar ELC 6000 Service Hours orSix Years

Caterpillar DEAC 3000 Service Hours orThree Years

Commercial Heavy-DutyCoolant/Antifreeze thatmeets “ASTM D5345”

3000 Service Hours orTwo Years

Commercial Heavy-DutyCoolant/Antifreeze thatmeets “ASTM D4985”

3000 Service Hours orOne Year

Caterpillar SCA andWater

3000 Service Hours orTwo Years

Commercial SCA andWater

3000 Service Hours orOne Year

Note: Refer to Special Publication, SEBU6251,“Caterpillar Commercial Diesel Engine FluidsRecommendations” for additional information thatrelates to coolant for your engine.

S·O·S Coolant AnalysisTable 5

Recommended Interval

Type of Coolant Level 1 Level 2

DEAC Every 250 Hours Yearly(1)

ELC Not Required Yearly(1) The Level 2 Coolant Analysis should be performed sooner if aproblem is identified by a Level 1 Coolant Analysis.

S·O·S Coolant Analysis (Level 1)

A coolant analysis (Level 1) is a test of the propertiesof the coolant.

The following properties of the coolant are tested:

• Glycol concentration for freeze protection and boilprotection

• Ability to protect from erosion and corrosion

• pH

• Conductivity

• Visual analysis

• Odor analysis

The results are reported, and appropriaterecommendations are made.

Refer to the Maintenance Interval Schedule inthis Operation and Maintenance Manual, “CoolingSystem Coolant Sample (Level 1) - Obtain” for asampling location and the maintenance interval forcollecting the coolant samples.

S·O·S Coolant Analysis (Level 2)

A coolant analysis (Level 2) is a comprehensivechemical evaluation of the coolant. This analysis isalso a check of the overall condition of the inside ofthe cooling system.

The S·O·S Coolant Analysis has the followingfeatures:

• Full coolant analysis (Level 1)

• Identification of the source of metal corrosion andof contaminants

• Water hardness

• Identification of buildup of the impurities that causecorrosion

• Identification of buildup of the impurities that causescaling

The results are reported, and appropriaterecommendations are made.

Refer to the Maintenance Interval Schedule inthis Operation and Maintenance Manual, “CoolingSystem Coolant Sample (Level 2) - Obtain” for asampling location and the maintenance interval forcollecting the coolant samples.

Testing the engine coolant is important to ensure thatthe engine is protected from internal cavitation andfrom corrosion. The analysis also tests the ability ofthe coolant to protect the engine from boiling andfrom freezing. The S·O·S Coolant Analysis can bedone at your Caterpillar dealer. Caterpillar S·O·SCoolant Analysis is the best way to monitor thecondition of your coolant and your cooling system.S·O·S Coolant Analysis is a program that is basedon periodic samples.

Refer to Special Publication, SEBU6251, “CaterpillarCommercial Diesel Engine Fluids Recommendations”for additional information.

5

Refill Capacity of the Cooling SystemTable 6

Approximate Refill Capacities

Compartment or System Liters Quarts

Engine and Expansion Tank(1) 45 48(1) The following capacities are for engines that have expansiontanks that are installed in the factory. Cooling systems whichare installed by the OEM for the vessel may differ. Refer tothe OEM specifications.

6

Documents

C12 570bhp