Is sae 10w-40 OK to use on a 2004 Pontiac Grand Prix with 80,000 miles and on the cap says sae 5w-30?

30

Asked by Apr 15, 2017 at 07:17 PM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

8 Answers

29,075

SURE ESPECALLY WITH SUMMER COMMING ON.. ALSO CHANGE OVER TO MOBIL 1 SYN.OIL...HECK CHANGE ALL OILS TO SYN..TRANS,REAR END,PS.....YOLL GET BETTER MILAGE AND PERFORMANCE ALSO !

1 of 1 people found this helpful.
60,835

Use 5w30 as the cap says.

2 of 2 people found this helpful.
30

I ask because on the manual it says not recommended

2 of 2 people found this helpful.
60,835

Use what the manual recommends and pay no attention to people on the internet that tell you different. The company that built it knows what it should have.

3 of 3 people found this helpful.
30

Thnx bob

1 of 1 people found this helpful.
60,835

My pleasure.

1 of 1 people found this helpful.
79,145

Why would you not use the 5W30? The 10W40 will be ok for now since it is getting warmer out, but go back to the 5W30 next oil change.

1 of 1 people found this helpful.
29,075

USE 10-30 OR 10-40 or 5-40 SYNTHETIC OIL ! dont know why i added a pictur other than the fact..i build motors in the 10s of thousands of dollars...you can pay me now or you can pay me later...remember that add..get the best oils and get away from the dinosaur oil stuff..

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