© 2012 Chevron U.S.A. Inc. All rights reserved. Chevron Confidential

Delo®400 Multigrade SAE 15W-40 Cummins ISX EPA07 Engine Field Test Program

• 6 x 2010 Kenworth with 2009 Cummins ISX

• 400 BHP

• 80,000 lb GVW

• 60,000 mile (97,000 km) drains

• Fuel economy ~7.9 mpg

• 350,000 miles to date

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Chevron Delo® 400 Multigrade SAE 15W-40 API CI-4+ with 1.4% Ash

API and Original Engine Manufacturers (OEM) Approvals– API CI-4 Plus, CI-4, CH-4, SL

– Cummins CES 20078

– Caterpillar ECF-2, ECF-1a

– Detroit Diesel 93K214

– Mack EO-N Premium Plus 2003

– Volvo VDS-3

– Daimler MB-Approval Benz 228.3

– MAN 3275

– Deutz DQC-III-10

– DDC/MTU Category-2

– Renault RLD-2

– JASO DH-1

– ACEA E7

– ZF TE-ML-04C

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Engine Type Severe* Normal* Light*

EPA 2010 ISX 15**15,000 miles – CES 20081

20,000 miles – CES 20078

25,000 miles – CES 20081

30,000 miles – CES 20078

35,000 miles – CES 20081

40,000 miles – CES 20078

EPA 2010 ISX 11.9**15,000 miles – CES 20081

20,000 miles – CES 20078

25,000 miles – CES 20081

30,000 miles – CES 20078

35,000 miles – CES 20081

40,000 miles – CES 20078

EPA 2010 ISL 9** Check with Cummins20,000 miles

500 HoursCheck with Cummins

EPA 2010 ISC 8.3** Check with Cummins20,000 miles

500 HoursCheck with Cummins

EPA 2010 ISB 6.7**Check with Cummins

20,000 miles

500 HoursCheck with Cummins

EPA 07 ISX**15,000 miles – CES 20081

20,000 miles – CES 20078

25,000 miles – CES 20081

30,000 miles – CES 20078

35,000 miles – CES 20081

40,000 miles – CES 20078

EPA 07 ISM**15,000 miles – CES 20081

20,000 miles – CES 20078

25,000 miles – CES 20081

30,000 miles – CES 20078

35,000 miles – CES 20081

40,000 miles – CES 20078

EPA 07 ISC** Check with Cummins15,000 miles

500 HoursCheck with Cummins

Cummins***(Cummins TSB101040 – Heavy Duty Product Oil Drain Intervals - 24 Aug-2010)

*Light Duty > 6.5 mpg or < 70,000lbs Gross weight; Normal Duty = 5.5 to 6.5mpg or 80,000lbs gross weight; Severe Duty < 5.5 mpg or > 80,000lbs gross weight**CES 20081 refers to an API CJ-4 approved oil like DELO 400 LE; CES 20078 refers to an API CI-4 Plus Oil like DELO 400 MG 15W-40*** For any Cummins engine models with light or normal service duty; Cummins allows an additional 5000 mile drains when using Cummins Premium Blue & Valvoline Premium Blue Extreme

On-Highway Heavy Duty Engine Manufacturer’s Recommended Oil Drain Intervals

© 2012 Chevron U.S.A. Inc. All rights reserved. Delo and ISOSYN Technology are trademarks of Chevron Intellectual Property LLC. All other marks are the property of their respective owners.

© 2012 Chevron U.S.A. Inc. All rights reserved. Chevron Confidential

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA Viscosity

4

Upper Viscosity Limit SAE 15W-40 – 16.3 cSt

Lower Viscosity Limit SAE 15W-40 – 12.5 cSt

Cummins Maximum Oil Drain Interval

Delo 400 Multigrade Oil Drain Interval Achieved

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Cummins Maximum Oil Drain Interval

Delo 400 Multigrade Oil Drain Interval Achieved

Maximum UOA Iron wear Limit – 200ppm

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA Iron Wear Metal Trending

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Cummins Maximum Oil Drain Interval

Delo 400 Multigrade Oil Drain Interval Achieved

Maximum UOA Lead Wear Limit – 30ppm

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA Lead Wear Metal Trending

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Cummins Maximum Oil Drain Interval

Delo 400 Multigrade Oil Drain Interval Achieved

Maximum UOA Copper Wear Limit – 30ppm

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA Copper Wear Metal Trending

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Cummins Maximum Oil Drain Interval

Delo 400 Multigrade Oil Drain Interval Achieved

Maximum UOA Aluminum Wear Limit – 30ppm

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA Copper Wear Metal Trending

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TBN Lower limit – 1.5

Delo 400 Multigrade Oil Drain Interval Achieved

Cummins Maximum Oil Drain Interval

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – UOA TBN Retention Trend

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Delo 400 Multigrade performing well out to 60,000 mile drain intervals Units targeted for engine teardown & inspection in March 2013 – total 450K miles Excellent engine protection with low wear metals Savings Opportunity for Swift:

– Average tractor mileage of 93,000 miles per year

– Current ODI at 40,000 miles – average truck has 2.3 oil changes/year

– Increase ODI to 50,000 miles – average truck has 1.9 oil changes/year• Savings across whole fleet by new ODI extension:

10,000 trucks x .4 x $200 = $800,000 per year savings

• Hard cost savings that can be measured

• Requires maintenance service schedule alignment

– Increase ODI to 60,000 miles – average truck has 1.6 oil changes/year• Savings across whole fleet by new ODI extension:

10,000 trucks x .7 x $200 = $1,400,000 per year savings

• Hard cost savings that can be measured

• Requires maintenance service schedule alignment

Delo 400 Multigrade SAE 15W-40Cummins ISX EPA07 Field Test – Summary and Opportunities