15w40 in gas engine?

[camkos10101]

is it alright to put 15w40 in a gasoline engine? i kno the w-body motors liek thier 5w30 but u guys kno ur stuff and i trust what u say

[PJB]

Its ok to use but probably not necessary.

Ive put 20W50 in a Ford Ranger before and it ran fine. I used the thicker oil only because it was burning oil.

[SmokesGTP]

I wouldn't put it in a 3.4 but yeah you should be alright.

[Brian P]

Id use 10W30 before that

[rglguy]

are you hard on your engine? do you race alot? ? use it, it will be great, but if its justa daily driver and seldon get nasty with the engine, go with 5w30, i use the thickest oil posible in the summer as i am hard on it,

but once fall and winter come along, DUMP and 5w goes in, or if i can afford it 0W30

 

just my opinion,

 

credited to automotive mechanic co-op, highschool auto, 1 sem,ester auto teachers helper, some college and just learnign via reading every text book in school..........

[GnatGoSplat]

I'm with Brian. Use 10W30. If you expect the temps to dip near 0F or below, use 5W30.