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?
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 !
Use 5w30 as the cap says.
I ask because on the manual it says not recommended
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.
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.
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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