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7/31/2019 G3039
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T E C H N I C A L S T U D Y
A Study of INTERCEPTOR
Synthetic 2-Stroke Oil for
Ski-DooRotaxE-TECEnginesWith ASTM Lubricity and Detergency Testing
Published August 2012
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Editors Note
When Bombardier Recreational Products (BRP) claimed AMSOILINTERCEPTOR Synthetic 2-Stroke Oil does not meet the performance demandsof its Rotax E-TEC engines used in certain models of Ski-Doo snowmobiles,
AMSOIL immediately took notice. The results of BRPs test, which depict ascuffed piston allegedly lubricated with INTERCEPTOR, directly contradict theresults experienced by AMSOIL customers and achieved in several real-worldlELDTRIALSANDINDUSTRYACCEPTEDLABORATORYTESTS).4%2#%04/2HASDEMON -strated exceptional performance in the following tests and trials:
Field Trials & Case Studiess 2OCKY-OUNTAIN2ENTAL&LEET&IELD4RIAL
s %XHAUST0OWER6ALVE&IELD3TUDYIN0OLARIS and Rotax engines
s -ILE2OTAX E-TEC Engine Case Study
Industry-Standard Bench Testings !34-4#3EQUENCE)$ETERGENCY4EST!34-$-OD
s .--!4#7!&,UBRICITY4EST
s *!3//NE(OUR$ETERGENCY4EST-
s -ULTIPLEHOUR#YCLE3NOWMOBILE%NGINE$YNAMOMETER4ESTSFORDEPOSITSVALVESTICKINGANDLUBRICITY
s (IGH&REQUENCY2ECIPROCATING2IG(&224ESTFORLUBRICITYANDlLMSTRENGTH!34-$-OD
s 3TANDARD4EST-ETHODFOR$ETERMINATIONOF,UBRICITYOF4WO3TROKE#YCLE'ASOLINE%NGINE,UBRICANTS
!34-$-OD
INTERCEPTORs high level of performance and protection in demanding two-stroke applications is well-
documented and indisputable.
4HEREFORE!-3/),ISCHALLENGING"20SCLAIMTHAT).4%2#%04/2WILLFAILTOADEQUATELYPROTECT2OTAX%4%#SNOWMOBILEENGINES"ASEDONITSlNDINGS"20STRONGLYIMPLIESITSOWN8033YNTHETIC#YCLE/ILWHICHI
often more expensive, is the only oil safe to use in Rotax E-TEC engines.
!-3/),FORMALLYREQUESTED"20MAKEAVAILABLEITSOILSPECIlCATIONSAGAINSTWHICHTOQUALIFY).4%2#%04/2for recommended use in Rotax E-TEC engines. BRP refused. Instead, BRP provided a summary of the
HOURENGINEDYNAMOMETERTESTITPERFORMEDINITSATTEMPTTODISCREDIT).4%2#%04/2"20REVEALEDITMODIlEDTHETESTSNOWMOBILESELECTRONICCONTROLMODULE%#-ONTHEASSUMPTIONTHATANENGINEOPERATING
FORHOURSUNDERMODIlEDCONDITIONSCANSIMULATEHOURSOFNORMALSERVICEWHICHACCORDINGTO"20IS
the engines life expectancy. Under the premise of BRPs testing, the life of a two-stroke engine can beaccurately predicted within a short period of time by modifying its operating conditions. BRPs results should
be viewed with skepticism. In effect, BRP created forced-failure conditions through engine operation and%#-MODIlCATIONSTHATARENOTREPRESENTATIVEOFREALWORLDCONDITIONSOFUSEORANYINDUSTRYACCEPTED
standards. While BRP implies expert status regarding the formulation of two-cycle oils, the company is not
ANOILMANUFACTURER)NCONTRAST!-3/),).#HASNEARLYYEARSEXPERIENCEFORMULATINGSYNTHETICTWO
stroke motor oils.
To demonstrate INTERCEPTORs effectiveness in real-world conditions, AMSOIL INC. conducted an extreme
dynamometer test on a Rotax E-TEC engine. In contrast to BRPs methodology, the test snowmobiles ECMWASNOTMODIlEDANDCONDITIONSWEREDESIGNEDTOREPLICATETHEOPERATINGCONDITIONSSNOWMOBILERSACTUALLY
encounter in the real world.
This document contains a description of the test along with full results. AMSOIL welcomes any outside entityto perform its own testing.
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Overview
$IRECTFUELINJECTION$&)SOPHISTICATEDCOMPUTERPROGRAMMINGTARGETED electronic oil injection and other developments have enabled a new era in two-stroke powersports engine design. Modern engines offer an unprecedented
COMBINATIONOFINCREASEDPOWERIMPROVEDFUELEFlCIENCYANDREDUCEDemissions.
The increased level of performance comes at a price: Modern enginesencounter increased heat, friction and stress while often using less oil toLUBRICATEANDPROTECTVITALENGINEPARTS4HE2OTAX%4%#2FOREXAMPLE ISALIQUIDCOOLED$&)TWOSTROKEENGINECAPABLEOFRPMANDHP )TINCORPORATESELECTRONICEQUIPMENTTHATCANADJUSTTHEAMOUNTOFOILTHEENGINEuses depending on operating conditions. As a result, the engine produces fewerexhaust emissions, but undergoes increased severity. Durable oils formulatedto provide increased lubricity are best suited for powersports engines like the2OTAX%4%#2
Objective#OMPARETHEABILITYOF!-3/),).4%2#%04/23YNTHETIC3TROKE/ILAND8033YNTHETIC#YCLE/ILTOPROTECTAGAINSTENGINEWEARANDDEPOSITSINASNOWMOBILEEQUIPPEDWITHA2OTAX%4%#2ENGINE
&URTHERCOMPARETHELUBRICITYANDDETERGENCYPROPERTIESOFEACHOILUSINGINDUSTRYSTANDARD!MERICANSociety of Testing and Materials (ASTM) testing. Demonstrate that INTERCEPTOR exceeds the performance
REQUIREMENTSOFHIGHPERFORMANCE$&)SNOWMOBILEENGINESINSEVEREOPERATINGCONDITIONS
Note: 8033YNTHETIC#YCLE/ILBATCHCODEOBTAINEDIN$ECEMBERAND!-3/),).4%2#%04/23YNTHETIC3TROKE/ILBATCHCODEPRODUCED$ECEMBERUNDERWENT
TESTINGCOMPLETEDIN-ARCH"OTHOILSWEREAVAILABLETOCONSUMERSATTHETIMEOFTESTING4ESTRESULTS
DONOTREPRESENTFUTUREFORMULATIONCHANGES4HISTESTDATAREmECTSSINGLETESTRUNSANDSTATISTICALrepeatability was not determined.
MethodologyAMSOIL developed the extreme dynamometer test on Rotax E-TEC engines in order to determine each
OILSLEVELOFENGINEPROTECTION&OLLOWINGEACHHOURPROCEDURETHEENGINEWASDISASSEMBLEDANDTHE
components rated by an ASTM calibrated rater. Merit ratings for each set of components (e.g. piston skirts,PISTONRINGSETCWEREDETERMINEDUSINGTHEAPPROPRIATETECHNIQUESANDRATINGSCALESASDElNEDINTHE
Coordinating Research Council, Inc. Deposit Rating Manual No. 20. Some components received a meritRATINGBASEDONASCALEWITHREPRESENTINGACOMPONENTFREEOFDEFECTSANDREPRESENTING
catastrophic distress. Others received merit ratings indicating the percentage of an area with defects
EGTHEPERCENTAGEPISTONSKIRTAREACONTAININGSCUFlNG
The lubricity properties of each oil were compared using the Standard Test Method for Determination of
,UBRICITYOF4WO3TROKE#YCLE'ASOLINE%NGINE,UBRICANTS!34-$-OD4HEDETERGENCYPROPERTIESof each oil were compared using the Standard Test Method for Determination of the Ability of Lubricants to-INIMIZE2ING3TICKINGAND0ISTON$EPOSITSIN4WO3TROKE#YCLE'ASOLINE%NGINES/THERTHAN/UTBOARDS
!34-$-OD)NBOTH!34-TESTSTHEREFERENCEOILWASREPLACEDBY8033YNTHETIC#YCLE/ILTOestablish a performance benchmark and facilitate a direct comparison. Both ASTM tests were performed
by an independent lab.
Extreme Dynamometer Test on Rotax E-TEC Engines4HE%XTREME$YNAMOMETER4ESTON2OTAX%4%#%NGINESSUBJECTEDACANDIDATEOILTOHOURSOFENGINE
DYNOTESTINGSUFlCIENTTIMETOSIMULATEAFULLSEASONOFSNOWMOBILERIDING%ACHHOURPROCEDURE
included periodic breaks to refuel and overnight periods of inactivity to simulate real-world operation.&OLLOWINGCOLLECTIONANDDISSEMINATIONALLDATAWASCOMPAREDTODETERMINEEACHOILSLEVELOFPERFORMANCE
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Test Snowmobile
4HECANDIDATEOILWASINSTALLEDINA"203KI$OO2ENEGADE8SNOWMOBILEEQUIPPEDWITHA2OTAX
%4%#2ENGINE4HESNOWMOBILEWASPURCHASEDNEWFROMANAUTHORIZED"20DEALER
Engine Dynamometer
4HESNOWMOBILEWASCONNECTEDTOA,ANDAND3EA$9./MITEENGINEDYNAMOMETEREQUIPPEDWITHAINCHWATERCOOLEDCENTRIFUGALPUMPWATERBRAKECAPABLEOFABSORBINGHP4HEDYNOWASlRSTCALIBRATED
using the test snowmobile to ensure the most accurate results possible. Throttle position and load controlWERESTRICTLYCONTROLLEDVIACOMPUTER$ATAWASGATHEREDUSING$9./MITE0RO$ATA!CQUISITION3OFTWARE
4HEDYNOUSESWATERUNDERPRESSURETOPLACELOADONTHEMOTORSIMULATINGTHETORQUEPRODUCEDBYA
snowmobiles continuously variable transmission.
Pre-Test Procedure
!SISSTANDARDPRACTICETHEDYNOWASlRSTCALIBRATEDALONGWITHTHETESTSNOWMOBILEPRIORTOTESTING
&OLLOWINGCALIBRATIONTHESNOWMOBILESENGINEWASREFRESHEDWITHNEWCYLINDERSCYLINDERHEADSPISTONSrings, wrist pins and wrist pin bearings using only authorized BRP replacement parts and standard
ENGINEBUILDINGPRACTICESTOENSUREOPERATIONTIMEDURINGCALIBRATIONDIDNOTAFFECTlNALRESULTS
4OENSUREACCURACYVARIABLESINCLUDINGFUELQUALITYCOOLANTMIXTURERATIORPMANDENGINELOADWERECONTROLLEDFROMONEHOURPROCEDURETOTHENEXT4HEMAINCOOLINGUNITCONTROLLEDENGINETEMPERATUREVIA
THEFACTORYPRESETTHERMOSTAT0ER"20SSPECIlCATIONSAMIXTUREOFCOOLANTANDWATERWASUSED
&ORADDITIONALCONTROLPURPOSESANDTOFURTHERLIMITVARIABLESENGINEPARTSWEREMEASUREDBEFOREANDAFTER
each dyno procedure. (Pre- and post-test measurements are included in Appendix A.) The snowmobiles%#-WASNOTMODIlEDINANYWAY
Care was taken to replicate real-world operating conditions while conforming to BRPs recommendationsgiven in the snowmobile owners manual. The same batch of pump gas was used throughout testing. The gas
MET"20SSPECIlCATIONSOFAMINIMUMOCTANERATINGANDAMAXIMUMETHANOLCONTENTOFPERCENTSEE!PPENDIX"'ASCONTAININGPERCENTETHANOLWASUSEDBECAUSEITINCREASESENGINESTRESSCOMPAREDTO
gas with reduced ethanol content, representing a worst-case scenario that further challenges each oil.
50-Hour Dyno Procedure
7ITHTHEENGINEPREPAREDACANDIDATEOILWASINSTALLEDINTHESNOWMOBILESOILTANKTOTHEMARKANDTHEFUELTANKlLLEDTOTHEBOTTOMOFTHElLLERNECK
To supplement the traditional dyno cooling tower and to further simulate the cooling effects of snow in actual
use, an auxiliary spray bar directed a controlled amount of water on the front and rear heat exchangers. A
HIGHSPEEDFANWASPOSITIONEDTOPROVIDEADDITIONALAIRUNDERNEATHTHESNOWMOBILESHOODSIMULATINGAIRmOWINREALWORLDRIDINGCONDITIONS/NCETHEENGINEREACHED&THEAUTOMATEDDYNOPROGRAMWASACTIVATED
Each dyno procedure was conducted according to the same computerized script. The engine underwentbreak-in according to its pre-programmed ECM, which was reset prior to conducting the second procedure.
4HEDYNOPROGRAMREQUIREDTHEENGINETOUNDERGOALLTYPESOFOPERATINGCONDITIONSINCLUDINGIDLETIME
PARTIALTHROTTLEOPERATIONANDFULLTHROTTLEOPERATION-AXIMUMRPMWASREPEATEDLYRUNDURINGEACHPROCEDUREANDEXHAUSTGASTEMPERATURESOFTENSURPASSED&ILLUSTRATINGTHESEVERITYOFOPERATION
/NCETHEHOURDYNOPROCEDUREWASCOMPLETETHEENGINEWASDISASSEMBLED4HEPARTSWEREAGAIN
measured and the post-test measurements documented. The parts were rated for wear and other distressby an ASTM calibrated rater. The complete upper end of the engine was again refreshed in preparation for
THENEXTHOURPROCEDURE
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Pistons __________________________________________________________________________________________________
AMSOIL INTERCEPTOR
Synthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
3CRATCHINGWHICHISNOTLUBRICANTRELATEDREFERSTOTHEALTERATIONOFTHESKIRTSURFACEBYlNEPARTICLES
SUSPENDEDINTHELUBRICANTFUELAIROREMBEDDEDINASURFACE3CUFlNGISLUBRICANTRELATEDANDAPPEARSASAMATTElNISH"OTHOILSCOMPLETELYPREVENTEDPISTONSKIRTSCUFlNG4HEPISTONSAREMANUFACTUREDWITHAcoating that is black in color. INTERCEPTOR effectively protected pistons from wear and limited removal of
the black coating.
Piston Scratching, PTO 2%0ISTON3CRATCHING-!'
0ISTON3CUFlNG04/
0ISTON3CUFlNG-!'
% Coating Removed, Exhaust Side, PTO
% Coating Removed, Intake Side, PTO
#OATING2EMOVED%XHAUST3IDE-!'
#OATING2EMOVED)NTAKE3IDE-!'
PistonSkirt
Results of Extreme Dynamometer Teston Rotax E-TEC Engines
Piston Scratching, PTO
0ISTON3CRATCHING-!'
0ISTON3CUFlNG04/
0ISTON3CUFlNG-!'
% Coating Removed, Exhaust Side, PTO
% Coating Removed, Intake Side, PTO
#OATING2EMOVED%XHAUST3IDE-!'
#OATING2EMOVED)NTAKE3IDE-!'
PTO1
MAG2
PTO
MAG
Intake Side Exhaust Side Intake Side Exhaust Side
Intake Side Exhaust Side Intake Side Exhaust Side
1 Power take off side2Magneto side
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Piston Rings & Lands _______________________________________________________________________________
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
0ISTONRINGDEPOSITSCANCAUSERINGSTICKINGANDCONSEQUENTPOWERLOSS4HERINGSINBOTHENGINESEARNED
PERFECTMERITRATINGSDEMONSTRATINGEACHOILPREVENTEDSTICKING
Ring Sticking, PTO
2ING3TICKING-!'
Crown Land, PTO
#ROWN,AND-!'
Ring Sticking, PTO
2ING3TICKING-!'
Crown Land, PTO
#ROWN,AND-!'
PTO MAGPTO MAG
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AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
To protect against pre-ignition and poor performance, two-stroke oils must resist piston crown deposits
caused by the elevated temperatures inside the combustion chamber. Piston crowns in both engines earnedhigh ratings for deposits, with INTERCEPTOR earning high ratings for undercrown deposits as well.
Piston Crown, PTO
0ISTON#ROWN-!'
Undercrown, PTO
5NDERCROWN-!'
Piston Crown, PTO
0ISTON#ROWN-!'
Undercrown, PTO
5NDERCROWN-!'
MAG PTOMAG PTO
Piston Crowns & Undercrowns ____________________________________________________________________
Undercrowns Undercrowns
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Wrist Pins & Bearings _______________________________________________________________________________
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
The wrist pins and bearings undergo constant rotational stress and represent areas prone to metal-to-metal
CONTACTANDWEAR4HEOILMUSTMAINTAINITSLUBRICATINGlLMFOROPTIMUMPROTECTION).4%2#%04/2LIMITEDwear effectively and provided a high level of protection.
PTO MAGPTO MAG
Piston Wristpins, PTO
0ISTON7RISTPINS-!' Piston Wristpin Bearing, PTO
0ISTON7RISTPIN"EARING-!'
Wristpin Case Condition, PTO 'OOD
7RISTPIN#ASE#ONDITION-!' 'OOD
Piston Wristpins, PTO
0ISTON7RISTPINS-!' Piston Wristpin Bearing, PTO
0ISTON7RISTPIN"EARING-!'
Wristpin Case Condition, PTO 'OOD
7RISTPIN#ASE#ONDITION-!' 'OOD
Wrist Pin Bearing Wrist Pin Bearing Wrist Pin Bearing Wrist Pin Bearing
Cylinder Heads ________________________________________________________________________________________
AMSOIL INTERCEPTOR
Synthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
Excessive cylinder head deposits are undesirable and can negatively affect performance. Both oilsdemonstrated strong cleanliness properties.
#YLINDER(EAD04/
#YLINDER(EAD-!'
#YLINDER(EAD04/
#YLINDER(EAD-!'
PTO MAGPTO MAG
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Exhaust Ports _________________________________________________________________________________________
AMSOIL INTERCEPTOR
Synthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
%XCESSIVEEXHAUSTPORTDEPOSITSANDBLOCKAGERESTRICTAIRmOWANDCONTRIBUTETOPOORPERFORMANCE"OTHoils demonstrated strong cleanliness properties as demonstrated by the high merit ratings for deposits and
virtually no port blockage.
Exhaust Port, PTO
%XHAUST0ORT-!'
% Blockage, PTO
"LOCKAGE-!'
Exhaust Port, PTO
%XHAUST0ORT-!'
% Blockage, PTO
"LOCKAGE-!'
Intake Ports & Cylinders ____________________________________________________________________________
AMSOIL INTERCEPTOR
Synthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
Intake port deposits in both engines were virtually non-existent. Both oils inhibited cylinder bore wearextremely well, demonstrating strong wear protection. Overall merit ratings were high for both sets of
cylinders.
PTO MAGPTO MAG
Intake Port, PTO
)NTAKE0ORT-!'
% Scratching, PTO
3CRATCHING-!'
#ROSS(ATCH2EMOVED04/
#ROSS(ATCH2EMOVED-!'
Rating, PTO
2ATING-!'
Intake Port, PTO
)NTAKE0ORT-!'
% Scratching, PTO
3CRATCHING-!'
#ROSS(ATCH2EMOVED04/
#ROSS(ATCH2EMOVED-!'
Rating, PTO
2ATING-!'
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Exhaust Power Valves _______________________________________________________________________________
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
Excessive hard carbon deposits and varnish on the exhaust power valves can interfere with operation,
reducing engine performance. None of the exhaust power valves tested exhibited any sticking, indicating
both oils provided strong cleanliness properties.
PTO TopPTO Top
PTO BottomPTO Bottom
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Exhaust Power Valves _______________________________________________________________________________
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
MAG TopMAG Top
MAG BottomMAG Bottom
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Results of the Standard Test Method for Determinationof Lubricity of Two-Stroke/Cycle Gasoline Engine
Lubricants (ASTM D 4863 Mod.)
7HETHERUSINGAGASOILPREMIXORDIRECTOILINJECTIONTWOSTROKEENGINESCANOPERATEFORSHORTPERIODSWITH
less oil than is desirable. In direct-oil-injected engines, throttle bursts can also result in the engine operating
WITHREDUCEDOILFORSHORTPERIODS4HEOILSLUBRICITYISVITALTOPROTECTINGAGAINSTPISTONANDCYLINDERSCUFlNGunder these operating conditions.
4HE!34-$LUBRICITYTESTEVALUATESTHEABILITYOFALUBRICANTTOMINIMIZEPISTONANDCYLINDERBORE
SCUFlNGINTWOSTROKESPARKIGNITIONGASOLINEENGINES4HEENGINEISOPERATEDATAGASTOOILRATIOmuch leaner than the ratios used by Rotax E-TEC engines.
!REFERENCEOILISRUNINA9AMAHA#%3CCENGINEATWIDEOPENTHROTTLE4HECOOLINGFANISTHENSHUTOFF
ALLOWINGTHEENGINETEMPERATURETOINCREASE(EATCAUSESPISTONEXPANSIONCAUSINGFRICTIONTOINCREASEANDTORQUETODECREASE4HETORQUEVALUEOFTHEREFERENCEOILATTHREEDIFFERENTTEMPERATURESISRECORDED4HE
CANDIDATEOILUNDERGOESTHESAMEPROCEDUREANDITSTORQUEVALUEATTHESAMETEMPERATURESISRECORDED'REATERTORQUELOSSMEANSLOWERPOWERANDLESSLUBRICITY4HETORQUEREDUCTIONVALUEAT&MUSTBEEQUAL
to or below the corresponding value for the reference oil in order to receive a passing grade. In short, lowerVALUESMEANBETTERLUBRICITY'ENERALENGINECONDITIONISEVALUATEDATTHEENDOFTHETEST
To facilitate a direct comparison, the benchmark reference oil was replaced by XPS-2
Synthetic 2-Cycle Oil.
4ORQUEVALUESFOR).4%2#%04/2WERELOWERTHANTHECORRESPONDINGVALUESFOR8033YNTHETIC#YCLE/IL
INTERCEPTOR demonstrated strong lubricity properties and surpassed the benchmark for lubricity at thePERCENTCONlDENCELEVEL
Temperature(F)
XPS-2 Synthetic2-Cycle Oil
(Reference)
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
572 3.23 lb. in. 2.83 lb. in.
617 4.00 lb. in. 3.62 lb. in.
662 4.79 lb. in. 4.42 lb. in.
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Page 14
Results of the ASTM TC Sequence I Detergency Test(ASTM D 4857 Mod.)
(IGHTEMPERATUREHIGHRPMTWOSTROKEENGINESARESUSCEPTIBLETOTHEEFFECTSOFLUBRICANTFAILURE0ISTONRINGSTICKINGDEPOSITSANDVARNISHCANCAUSEDIFlCULTSTARTSANDDECREASEDOPERATINGEFlCIENCY4HELUBRICANTS
detergency properties are critical to resisting harmful deposits and varnish.
4HE!34-$DETERGENCYTESTISDESIGNEDTOEVALUATETHECLEANLINESSPROPERTIESOFATWOCYCLEengine lubricant. Particular attention is paid to piston skirt varnish, piston ring sticking, spark plug fouling,
PREIGNITIONCOMBUSTIONCHAMBERDEPOSITSANDEXHAUSTPORTBLOCKING4ESTINGISDONEATAGASTOOIL
ratio.
4HETESTUSESA9AMAHA2$"CCENGINEDESIGNEDTOOPERATEWITHAREFERENCEOILINONECYLINDERANDA
CANDIDATEOILINTHEOTHER!FTERHOURSOFRUNTIMETHEENGINEISDISASSEMBLEDANDRATEDFORDEPOSITSRING
sticking and other distress.
To facilitate a direct comparison, the benchmark reference oil was replaced by XPS-2Synthetic 2-Cycle Oil.
Cylinder Heads ________________________________________________________________________________________
"OTHOILSPREVENTEDCYLINDERLINERWEARANDINHIBITEDCYLINDERHEADDEPOSITSWITH8033YNTHETIC#YCLE
Oil earning a high rating.
AMSOIL INTERCEPTOR
Synthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
Cylinder Liner Wear
#YLINDER(EAD$EPOSITS
Cylinder Liner Wear
#YLINDER(EAD$EPOSITS
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Page 15
Pistons & Rings _______________________________________________________________________________________
"OTHOILSPREVENTEDPISTONSKIRTSCUFNGANDRINGSTICKINGTOTHETOPRINGEARNINGPERFECTMERITRATINGS
0ISTONVARNISHRATINGSWEREALSOHIGHWHILE).4%2#%04/2EARNEDAHIGHRATINGFORRINGLANDDEPOSITS
INTERCEPTOR met or surpassed the performance benchmark in nearly every category.
AMSOIL INTERCEPTORSynthetic 2-Stroke Oil
XPS-2 Synthetic 2-Cycle Oil
ThrustThrust
Anti-ThrustAnti-Thrust
0ISTON3CUFlNG4HRUST
0ISTON3CUFlNG!NTI4HRUST
0ISTON6ARNISH4HRUST
0ISTON6ARNISH!NTI4HRUST
Ring Land
Ring Sticking, Top Ring
Ring Sticking, Second Ring
Piston Crown Deposits
0ISTON3CUFlNG4HRUST
0ISTON3CUFlNG!NTI4HRUST
0ISTON6ARNISH4HRUST
0ISTON6ARNISH!NTI4HRUST
Ring Land
Ring Sticking, Top Ring
Ring Sticking, Second Ring
Piston Crown Deposits
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Page 16
Conclusion
Testing proves the effectiveness of AMSOIL INTERCEPTOR Synthetic 2-Stroke Oil in Rotax E-TEC engines
SPECIlCALLYANDHIGHPERFORMANCE$&)POWERSPORTSENGINESINGENERAL&OLLOWINGHOURSOFENGINEDYNO
testing, merit ratings assigned to components by an ASTM calibrated rater offer convincing proof of perfor-MANCEWITH).4%2#%04/2EARNINGPERFECTRATINGSFORPISTONSKIRTSCUFlNGANDPISTONRINGSTICKING2ATINGS
FORCYLINDERBORECROSSHATCHREMOVALEXHAUSTPORTBLOCKINGANDOTHERAREASWEREHIGHANDREmECTTHEOILSability to control deposits and inhibit wear. The results of the Extreme Dynamometer Test on Rotax E-TEC
%NGINESDISPROVES"20SALLEGATIONTHAT!-3/),).4%2#%04/23YNTHETIC3TROKE/ILWILLFAILTOADEQUATELYPROTECT2OTAX%4%#ENGINES).4%2#%04/2EXCEEDSTHEPERFORMANCEREQUIREMENTS
4HERESULTSOFTHE!34-$LUBRICITYTESTPROVIDEADDITIONALPROOFOFPERFORMANCE!TAGASTOOIL
RATIOFARLEANERTHANTHERATIOSPRODUCEDBYTHE2OTAX%4%#2ENGINE).4%2#%04/2DEMONSTRATEDINCREASEDLUBRICITYCOMPAREDTO8033YNTHETIC#YCLE/ILANDSURPASSEDTHEPERFORMANCEBENCHMARK)N
ADDITION).4%2#%04/2PREVENTEDPISTONSKIRTSCUFlNGANDCYLINDERWEARANDSHOWEDSTRONGDETERGENCY
PROPERTIESINTHE!34-$DETERGENCYTESTSURPASSING8033YNTHETIC#YCLE/ILASTHEPERFORMANCEbenchmark in almost all instances.
4HESERESULTSHAVEALSOBEENCONlRMEDINA-ILE2OTAX%4%#%NGINE#ASE3TUDY'0ISTONS
TAKENFROMA3KI$OO4.4SNOWMOBILEEQUIPPEDWITHA2OTAX%4%#2ENGINEEXHIBITEDNOSCUFlNGORRINGSTICKINGFOLLOWINGMILESOFREALWORLDAGGRESSIVETRAILRIDING
4HECASESTUDYANDHOURDYNOTESTAREINSTARKCONTRASTTO"20SHOURENGINETEST"20ADMITSTO
modifying the snowmobiles ECM, in effect forcing a failure using operating conditions not representativeof real-world use. It is the view of AMSOIL that BRPs test provides no value in determining the overall
performance of any oil, including INTERCEPTOR. AMSOIL, on the other hand, closely replicates the actualOPERATINGCONDITIONSENCOUNTEREDBYOWNERSOFSNOWMOBILESEQUIPPEDWITH2OTAX%4%#ENGINES"ASEDON
its decades of experience with powersports applications, AMSOIL concludes that BRP used a forced-failure
testing tactic to create failure conditions that do not exist in real-world use.
Based on the results of the Extreme Dynamometer Test on Rotax E-TEC Engines, AMSOIL guaranteesthat INTERCEPTOR Synthetic 2-Stroke Oil effectively lubricates Rotax E-TEC engines and is a high-
performance replacement for BRPs more-costly XPS-2 Synthetic 2-Cycle Oil.
Use of AMSOIL INTERCEPTOR will not void BRPs warranty, as BRP would have enthusiasts believe.
The right to use AMSOIL INTERCEPTOR in Rotax engines without voiding the warranty is protectedunder U.S. federal law by the Magnuson Moss Warranty Act of 1975. AMSOIL additionally warrants theuse of INTERCEPTOR in all Rotax engines according to the AMSOIL Limited Warranty (G1363).
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Page 18
!PPENDIX"&UEL3PECICATIONS
RON (Research Octane Number) 96.2
MON (Motor Octane Number) 87.2
R+M/2 (RON + MON/2) 91.7
EtOH (Ethanol) 10.2%
Benzene 0.48%
Toluene 2.0%
0ARAFNS 64.7%
/LENS 6.2%
Aromatics 18.6%
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