PETROLEUM QUALITY INSTITUTE OF AMERICA
SAMPLE SUMMARY/HEAVY DUTY DIESEL ENGINE OIL

Heavy duty diesel engine oils are formulated to meet the demanding requirements of engines operating in both on and off road applications. These include oils used in the huge tractors pulling trailers from coast-to-coast, farm equipment used to feed the world, road pavers, graders, excavators, forest machinery, skidders, loaders, dozers, and other heavy equipment. Needless to say, these engine oils are critical to delivering the goods, so know what makes them work.

Heavy Duty Diesel Engine Oil

Sample Status Key:

No Issues
Note
Advisory
Consumer Alert

Below is a list of all the Heavy Duty Diesel Engine Oil (HDEO) samples tested. Click links to view sample assessment and details.

BrandDateGradeAPIStatus
Gulf Super Duty Plus06/13/202015W-40CK-4 1 Green No Issues
Castrol GTX2/13/202015W-40CK-4 1 Green No Issues
Ford Motorcraft2/13/202015W-40See Page 1 Green No Issues
Chevron Delo2/13/202015W-40CK-4 1 Green No Issues
Mobil Delvac 13002/13/202015W-40CK-4 1 Green No Issues
Shell Rotella T42/13/202015W-40CK-4 1 Green No Issues
Shell Rotella T52/13/202015W-40CK-4 1 Green No Issues
Mile Master6/22/201915W-40CI-4 1 Green No Issues
Wolf’s Head Extreme-Duty10/5/201815W-40CK-4 1 Green No Issues
CarQuest7/26/201815W-40CK-4 1 Green No Issues
LUBRIGUARD7/26/201815W-40CK-4 1 Green No Issues
O’Reilly7/26/201815W-40CK-4 1 Green No Issues
Petro-Canada Duron HP7/10/201815W-40CK-4 1 Green No Issues
CAT DEO-ULS6/27/201815W-40CK-4 1 Green No Issues
John Deere Plus-50 II6/27/201815W-40CJ-4 1 Green No Issues
Kubota6/27/201815W-40CK-4 1 Green No Issues
Traveller6/27/201815W-40CK-4 1 Green No Issues
Chevron Delo 400 SDE6/26/201815W-40CK-4 1 Green No Issues
Ford Motorcraft Super Duty Formula6/26/201815W-40See Page 1 Green No Issues
Mobil Delvac 1300 Super6/26/201815W-40CK-4 1 Green No Issues
NAPA6/26/201815W-40CK-4 1 Green No Issues
Royal Purple DURALEC6/26/201815W-40CK-4 1 Green No Issues
Shell Rotella T46/26/201815W-40CK-4 1 Green No Issues
STP6/26/201815W-40CK-4 1 Green No Issues
Valvoline6/26/201815W-40CK-4 1 Green No Issues
Duragard Diamond Plate12/9/201715W-40CK-4 1 Green No Issues
Ford Motorcraft Super Duty Formula5/13/201710W-30See Page 1 Green No Issues
Kendall with Liquid Titanium Super – D XA5/12/201715W-40CK-4 1 Green No Issues
Chevron Delo 400 SDE4/3/201715W-40CK-4 1 Green No Issues
Valvoline Premium Blue4/3/201715W-40CK-4 1 Green No Issues
Shell Rotella T4 Triple Protection3/30/201715W-40CK-4 1 Green No Issues
RacePro HDD3/28/201715W-40CJ-4 1 Green No Issues
Mobil Delvac 1300 Super3/7/201715W-40CK-4 1 Green No Issues
Chevron Delo 400XLE8/10/201610W-30CJ-4 1 Green No Issues
Ford Motorcraft Super Duty8/10/201615W-40CJ-4 1 Green No Issues
Mobil Delvac 1300 Super8/10/201615W-40CJ-4 1 Green No Issues
ProLine All Fleet8/10/201615W-40CJ-4 1 Green No Issues
Shell Rotella T Triple Protection8/10/201610W-30CJ-4 1 Green No Issues
Shell Rotella T Triple Protection8/10/201615W-40CJ-4 1 Green No Issues
SuperTech Heavy Duty8/10/201615W-40CJ-4 1 Green No Issues
Valvoline Premium Blue8/10/201615W-40CJ-4 1 Green No Issues
Mystik JT 84/13/201615W-40CJ-4 1 Green No Issues
CENEX SUPERLUBE TMS4/29/201515W-40CJ-4 1 Green No Issues
Brad Penn H.D Premium Plus2/5/201515W-40CJ-4 1 Green No Issues
Traveller2/5/201515W-40CJ-4 1 Green No Issues
Supers HD FG-20002/4/201515W-40CJ-4
Auto Extra2/1/201515W-40CJ-4 1 Green No Issues
Blain’s Farm & Fleet1/15/201515W-40CJ-4 1 Green No Issues
ACE Super Heavy Duty1/5/201515W-40CI-4 1 Green No Issues
Love’s1/5/201515W-40CJ-4 1 Green No Issues
Marathon Multipower-3 Ultra1/5/201515W-40CI-4 1 Green No Issues
Rural King Heavy Duty1/5/201515W-40CJ-4 1 Green No Issues
Agip ALL-GUARD XHD-712/25/201415W-40CJ-4 1 Green No Issues
Phillips 66 Fleet Supreme EC12/4/201415W-40CJ-4 1 Green No Issues
Phillips 66 GUARDOL ECT12/4/201415W-40CJ-4 1 Green No Issues
Castrol GTX Diesel11/20/201415W-40CJ-4 1 Green No Issues
LUBRIGUARD11/20/201415W-40CJ-4 1 Green No Issues
ProLine11/20/201415W-40CJ-4 1 Green No Issues
Chevron Delo 400LE11/19/201415W-40CJ-4 1 Green No Issues
Ford Motorcraft Super Duty11/19/201415W-40CJ-4 1 Green No Issues
Mobil Delvac 1300 Super11/19/201415W-40CJ-4 1 Green No Issues
Shell Rotella T511/19/201410W-30CJ-4 1 Green No Issues
Shell Rotella T611/19/20145W-40CJ-4 1 Green No Issues
Shell Rotella T Triple Protection11/19/201415W-40CJ-4 1 Green No Issues
CAM2 Super HD8/17/201315W-40CJ-4 1 Green No Issues
CITGARD 6008/5/201315W-40CJ-4 1 Green No Issues
CarQUEST Fleet Plus6/20/201315W-40CJ-4 1 Green No Issues
Kendall Super-D XA6/19/201315W-40CJ-4 1 Green No Issues
Love’s6/19/201315W-40CJ-4 1 Green No Issues
Lubriguard6/19/201315W-40CJ-4 1 Green No Issues
LucasMAGNUM Long Drain Motor6/19/201315W-40CJ-42 Advisory Yellow
Wolf’s Head6/19/201315W-40CJ-4 1 Green No Issues
Brad Penn6/9/201315W-40CJ-4 1 Green No Issues
Chevron Delo 400LE4/18/201315W-40CJ-4 1 Green No Issues
Mobil Delvac 1300 Super4/18/201315W-40CJ-4 1 Green No Issues
Motorcraft Super Duty4/18/201315W-40CJ-4 1 Green No Issues
Shell Rotella T Triple Protection4/18/201315W-40CJ-4 1 Green No Issues
SuperTech4/18/201315W-40CJ-4 1 Green No Issues
CITGARD 5004/6/201315W-40CI-4 1 Green No Issues
NAPA3/2/201315W-40CJ-4 1 Green No Issues
Traveller2/5/201315W-40CJ-4 1 Green No Issues
MileMaster2/2/201315W-40CI-4 1 Green No Issues
Sunoco Super C1/19/201315W-40CJ-4 1 Green No Issues
Service Pro3/17/201215W-40CJ-4 1 Green No Issues

HEAVY DUTY DIESEL ENGINE OIL​ ARTICLES