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?

YouTubeMobil 1 Merchandise
Mobil 1 Rewards
Ask MobilAsk Mobil
Is Mobil 1 0W-40 Okay to Use in a Ford F-350?
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.
Is Mobil 1 0W-40 Okay to Use in a Ford F-350?
Mobil 1 0W-40. I own a 2007 Ford F-350 4X4 with the Triton V-10 (gas engine). I'm aware that Ford recommends 5W-20. However, I honestly don't feel very comfortable working my truck with only 20 weight oil. I want the absolute best protection against engine wear; (beyond what a manufacturer recommends) therefore, I strongly prefer to use Mobil 1 0W-40. Any problem with my desire? Also will my fuel consumption drastically worsen (beyond its heavy thirst now?).
-- James Welch, Hubbardston, MA
Mobil 1 0W-40 should work fine for your engine but you will pay the price in a loss of fuel economy. This is why the 5W-20 is recommended.
Ask a QuestionAsk Mobil
Copyright 2005-2014 Exxon Mobil Corporation. All Rights Reserved. ExxonMobil Home | Site Map | Contact Us | Privacy | Legal