Mobil 1 Logo with trademark
Mobil 1 RacingTM
Car Care for a Better Ride

My Mobil
Discover the Benefits of Membership
Forgot your username or password?

Newsfeedsfacebook
YouTubeMobil 1 Merchandise
Mobil 1 Rewards
Ask MobilAsk Mobil
Explain the Differences Between the Diesel Motor Oils
 
Ask Your Stickiest Question. . . Or ask us something you’ve always wanted to know about using our products. We’ll sort through all the submissions and present the best questions to our automotive experts. We'll share the questions and their answers here.
Question:
Explain the Differences Between the Diesel Motor Oils
I noticed on your web site that the Mobil 1 Turbo Diesel Truck 5W-40 is rated CJ-4. I currently use Mobil Delvac 1 ESP 5W-40, which is also rated CJ-4 in my 2008 Chevrolet 2500HD Duramax Diesel. Are these two similar? What's the difference?
-- Alikhan Salman, Sherwood, AR
Answer:
Both products have different formulations and both exceed API CJ-4 requirements. Either product, however, can be used in your particular engine. Mobil 1 Turbo Diesel Truck 5W-40 is specifically formulated to provide outstanding protection to light-duty diesel-powered passenger vehicles. It also exceeds the requirements of API SM classification for gasoline engines. Mobil Delvac 1 ESP 5W-40 has been especially formulated for use in all super high performance diesel applications, and has engine builder approvals for the following:

• Cummins CES 20081
• Detroit Diesel Power Guard Oil Specification 93K218, 93K214
• Mack EO-O Premium Plus, EO-N Premium Plus 03
• Mercedes Benz 228.31, 228.3
• Volvo VDS-4, VDS-3, VDS-2
• Deutz DQC III-05
Ask a QuestionAsk Mobil
Copyright 2005-2014 Exxon Mobil Corporation. All Rights Reserved. ExxonMobil Home | Site Map | Contact Us | Privacy | Legal