Xj 4.0 gas in oil.

TapouT

Well-Known Member
Joined
Oct 5, 2008
Location
Hickory nc
Bear with me as this is going to be long. I bought a 1989 Jeep Cherokee 4.0 last night. Has 187,XXX miles on it. The guy that had it before me used it primarily for wheeling. I pulled the dipstick out while I was looking at the Jeep and the oil smelled like gas. It didn't bother me too much. He said that he flipped the Jeep over on it's top and that's what caused it and hasn't changed the oil since. He said that they trailered the Jeep home and he hasn't driven it much since then. The dipstick isn't showing way over full or anything as if a head gasket was blown the dipstick actually reads normal and the Jeep ran like an absolute top it doesn't miss a lick. When I got the Jeep home last night I pulled the drain plug and let the oil drain out for about ten minutes and checked the drain pan and it appeared to be very milky. It doesn't smell like coolant though it just smells like gas. I left the drain plug out and ran a fresh quart of 10w30 through it and it came out pretty milky also and again it smelled like gas.

I let it drain out over night and I'm going to pour some fresh Rotella 15w40 in it today at lunch time and slap a new filter on it. Do you think that I'm going to have a problem out of it? Thanks for the help!
 
Its a 4.0. If its runs smooth and quiet, I wouldn't even bother changing the oil. Normally by 187k miles, they all have a knock and a lifter tick, and they will still easily go 1/4 million miles.
 
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