Thread: question about oil for 2002 GTP

Originally Posted by Schwuppes

amazed at the thin oil you guys use over there in the states... I know the weather is a lot colder than here in Aus... but a 30 weight oil seems excessively thin and just causes more unnecessary wear.

Most people run 15w40 semi synthetic or 5w50 mobil1 here. My performance shop even goes up to 10w70 (although i think thats a bit too thick lol)

Ive been using mobil1 5w50 and oil pressure is spot on 55psi at idle and around 60 with revs

You crazy upside down people lol.

15w40 is what we run in a semi or a standard diesel truck haha.

If I lived in a warm place all year round, I'd gladly run a heavier weight oil and not care at all but being that I see temps well below 0º F in the winter I stick with 5w30. Though we do run a 20w50 FULL SYN in older muscle cars.