I know most people on here stick with what Chrysler recommends 5W-20, but is it ok to run 30? I talked with a lot of people around here and they said with the higher elevation and the really cold winters I will be better off. I just changed my oil and went with Mobil 1 5w-30 synthetic and whether or not the previous things matter I am must curious if I made a fatal mistake or if I'll be fine. Input please!

 

ive been running 5w30 (non-synthetic, i'm cheap) since i bought my jeep 2 yrs ago... no issues yet

 

I've been using it in mine. No big deal.

 

You should be fine, I keep the 5w-20 since winters are colder than summers are hot and I'm at a lower elevation. With the cold winter where you are the oil will get thicker and slower running at startup, but the higher elevation will help thin it out I believe... Could be wrong. Regardless you shouldn't have a problem.

 

Very good to hear! Thanks for the input guys.

 

this is what I plann on using... getting ready to convert it to mobil 1, second oil change... 56## miles. all my cars are using it now...

 

I run 10w-30 penzoil in mine.

 

Exactly the weight I would run in the 3.8.

 

I must be a little crazy then, i rock 10 w 30 in the summer and 5 w 30 in the winter. Always Mobil 1 though so it probably doesn't even matter!

 

I have been using Mobil 1 5w-30 synthetic for about 4 years and over 51,000 miles and running great!