IJM
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Yesterday
- Join DateJan 2014
- LocationDistrict of Columbia
- Posts:1,533
- Year1998
- ModelCherokee (XJ)
- Engine4.0
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Likes:667
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Liked:349 Times in 270 Posts
Quote:
15w is a bit heavy for 0°F cold startups, no?Originally Posted by cruiser54
Rotella 15-40 is great for nearly all climates!! 0 to 100!!
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cruiser54
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May 16, 2024
- Join DateAug 2011
- LocationPrescott, Az
- Posts:43,971
- Year1990
- ModelCherokee (XJ)
- Engine4.0
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Likes:1,979
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Liked:1,578 Times in 1,279 Posts
Not according to the factory chart I posted above!! It's all we used at the dealership for the 13 years I was there. It gets down to 0* here.
Junior Member
Quote:
Google search like this: cherokeeforum.com: best oil Originally Posted by 92SmokyCherokee
First off, if this has already been discussed a billion times, I'm sorry, but the search function on this forum doesn't work very well.
You will get much better results searching like this.
IJM
CF Veteran
close
Yesterday
- Join DateJan 2014
- LocationDistrict of Columbia
- Posts:1,533
- Year1998
- ModelCherokee (XJ)
- Engine4.0
-
Likes:667
-
Liked:349 Times in 270 Posts
Quote:
I'm confused. Your chart, which I think is the same as in my '98 manual, says 10w for temps down to 0°F, but then you recommended 15w Rotella for the same minimum temp use. Originally Posted by cruiser54
Not according to the factory chart I posted above!! It's all we used at the dealership for the 13 years I was there. It gets down to 0* here.
Quote:
30*F to 100*F+ 20W-40 or 20W-50
0*F to 100*F+ 10W-30 or 10W-40
-20*F to 60*F 5W-30
30*F to 100*F+ 20W-40 or 20W-50
0*F to 100*F+ 10W-30 or 10W-40
-20*F to 60*F 5W-30
Quote:
You need two types of cats. A test passing cat, and a hollowed out cat.Originally Posted by 92SmokyCherokee
MY jeep definitely burns oil, so I guess my cat is screwed lol
Newbie
I use 10w-30 conventional, whatever brand is on sale (including store brands) and I religiously change it every 3000. Why? Because the manual told me to.
I also add some Marvel Mystery Oil sometimes. Why? It makes me feel like I'm doing something.
In summer, I switch to 10w-40. Why? A mechanic I trust said it's okay.
I have more than 300k on mine and - thankfully - it runs great.
I also add some Marvel Mystery Oil sometimes. Why? It makes me feel like I'm doing something.
In summer, I switch to 10w-40. Why? A mechanic I trust said it's okay.
I have more than 300k on mine and - thankfully - it runs great.