Oil for 4.2l AMC

[Llobu]

Hello

I would like to know the oil you are using in your AMC 258 i6 / 4.2l AMC engines.

I have mine in a 86 CJ7 .The book says a 10w30 but I,m not sure if that it,s for cold weather better than warm.

Thank you

 

[Torxhead]

http://www.jeep-cj.com/forums/f2/oil-type-weight-17359/ -This is a recent discussion about that topic that they really beat to death. You might want to go a bit heavier in oil weight if you have an older engine also.