97 4.0l Chrerokee oil?

[Christian]

Hello,

I use M1 15-50 in my 97 4.0l Chrerokee during the summer here in Boston.

do you think that is OK?

cK

 

[buster]

Yes, and I'd use their new 5w-40 SUV oil for this engine. Perfect fit. The Jeep 4.0L is an engine that clearly likes a heavy 30wt to 40wt oil.

 

[SteveD2]

Yeah, that will work fine, but it's a little thick. I wouldn't go any thicker than xW40. You'll only lose gas mileage...