Hi

What grade of motor oil recommended by jeep in the manual ?

jeep cherokee 2001 and the temperature now is 20c

 

Use 10W-40 if the average temperature is 20C and use a good oil filter. Any brand except FRAM. You must be somewhere below the equator. Lucky you.

 

 

10w30 if it were mine.

 

10w-30 if temps are expected to exceed 100F, 5w-30 if temps are expected to be below 0F.

Straight from my 1999 Chrysler service manual.

 

14+ year old info.......hummm. It's ok, but there's better info/choices out there.

Always use/choose 5W30 over 10W30. They r the same grade/weight/viscosity (30) at normal operating temp. 5W30 will flow quicker to the top of the motor than 10W30 when oil is below operating temp.

Here's a very informative and oil myth busting read.....

http://www.supramania.com/aehaas/

 

^ Correct that is what I run 5w30 my bad. ^

 

I run 5w40 year round. ambient temps from 100 to -10

 

Is that you salad. Stop this nonsense haha.

 

Have u seen 0W40 in your area.

 

We're talking about an engine with technology inside it from the 50's.

I would think just about ANY weight of oil will make our 4.0's happy.

If you live in an area with extreme temperatures then get the appropriate grade.

 

Canola oil... Peanut is too thick, freezes easily. Know your Crisco!

The original 2000 owners manual calls out 5w30 below freezing and "prefers" 10w30 above freezing. Oil has changed in the last 14 years, starting as late as 2005 all the 4.0L manuals reflected that and specified 5w30 as the preferred lubricant across all temperature ranges, with 10w30 only being "acceptable".

If you wanna geek out there's a thread in ny signature.

 

How about Aeroshell 15W50 ? Works good in my airplane..

 

Lawn mower oil in a highly sophisticated Jeep?........really?

 

Thank you guys.