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
Oil for a Pontiac Grand Am GT1
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.
Oil for a Pontiac Grand Am GT1
I have a 2001 Pontiac Grand Am GT1. It's one of 525 that came from the factory with the 75th Anniversary Edition package installed on it. Love the car. But I have had a problem that it seems like a lot of people are having with those 3.4l motors, the intake gasket popped. I am getting ready to redo that, change the plugs and wires, and new water pump. When it gets done, I will run a cheap oil through the motor to make sure I clean it out real good as I have anti-freeze in with my oil now. My question is this. With close to 107,000 miles on the car, is it safe to run synthetic? And if so what kind? I live in Indiana, so below freezing is a problem!! LOL I have always ran Rotella 15W-40 in my cars, ever since high school, but I have always had cars that were a breeze to work on, old Mustangs and Trans Am's. Liked the detergent quality I guess. But with my G.A., I want to make sure it lasts a lot longer than 107,000. What would you recommend?
-- Mark Ray, Frankfort, IN
We recommend you use Mobil 1 10W-30 or Mobil 1 5W-30. Both meet GM4718M, which is the highest lubricant performance specification for GM vehicles.  It is absolutely safe to run a synthetic oil in an older vehicle. In fact in an older vehicle it is even more important so the vehicle life can give even more years of reliable service.
Ask a QuestionAsk Mobil
Copyright 2005-2014 Exxon Mobil Corporation. All Rights Reserved. ExxonMobil Home | Site Map | Contact Us | Privacy | Legal