iwannadie
NAXJA Forum User
- Location
- Gilbert, Az
2002 WJ v8 auto 4x4 190K miles
It looses or burns an awful lot of oil and I can not seem to track down where its going. I've fixed all the actual leaks(valve covers were leaking badly) and have run dye through many times and see no signs of an actual leak now.
I don't see signs of spark plugs being fouled at all, they looked perfect the last time I checked them. No signs of oil getting to the o2 sensors that I could tell. I have seen smoke from the exhaust on a few occasions but not often. Actually, the only times I've seen smoke have been idling after grocery shopping on the way home when just leaving the parking lot. I've followed looking for smoke from the exhaust while driving around and didn't see any. I had good and steady compression across all cylinders.
Something I just recently noticed. The crank case vent system(system of tubes and 2 filters between the valve covers) had a few cracked elbows. I looked closer and see obvious signs of oil splattering on the firewall but not a ton or anything went and built up. I pulled the vent tubes and replaced them (from the dealer only 26 bucks, not bad actually). While taking the old one off I noticed the old one was different than the new one. The passenger side filter was not in the same location and it was backwards. I'm not sure if that would be enough to cause pressure to build up and cause my oil consumption or not? I replaced the PCV valve on the oil filler neck a while ago(broke while working on something else).
The PO had the oil change records going back to the day he bought it(original owner) and they were all done at quick lube type of places. My theory so far is that maybe the years of cheap oil build up a ton of sludge and when I got it and started using better oil it maybe dislodged the sludge clogging the PCV system combined with the backwards filter causing blowby and/or to puke out of the PCV system behind the motor. With the wind it may be blowing the oil away fast enough that its not showing on the firewall or I am just not seeing it way up in the tranny tunnel. Something else I've noticed is the oil fill cap is always a bear to remove. It is a cam style cap so you can't really over tighten it but every time I go to remove it the thing feels welded on. Could that be a sign of pressure building up and causing the cap to become tight?
I've used castrol high mileage non-syn 5w30 since I've had it. Just recently switched to rotella t6 5w40 at the recommendation of a friend with no sign of improvement so far, actually have lost 2 qts at about half my oil change interval so its pretty much the same as the castrol.
Any thoughts? I forget at this point just how much oil but its a Lot, maybe 4-5 qts between oil changes. Not sure why I even bother with oil changes with the steady flow of fresh oil I should just be changing the filter at this point.
With the cost of oil I can't just keep pouring it down the drain like this forever. It runs great with no real issues other than sucking down the oil.
It looses or burns an awful lot of oil and I can not seem to track down where its going. I've fixed all the actual leaks(valve covers were leaking badly) and have run dye through many times and see no signs of an actual leak now.
I don't see signs of spark plugs being fouled at all, they looked perfect the last time I checked them. No signs of oil getting to the o2 sensors that I could tell. I have seen smoke from the exhaust on a few occasions but not often. Actually, the only times I've seen smoke have been idling after grocery shopping on the way home when just leaving the parking lot. I've followed looking for smoke from the exhaust while driving around and didn't see any. I had good and steady compression across all cylinders.
Something I just recently noticed. The crank case vent system(system of tubes and 2 filters between the valve covers) had a few cracked elbows. I looked closer and see obvious signs of oil splattering on the firewall but not a ton or anything went and built up. I pulled the vent tubes and replaced them (from the dealer only 26 bucks, not bad actually). While taking the old one off I noticed the old one was different than the new one. The passenger side filter was not in the same location and it was backwards. I'm not sure if that would be enough to cause pressure to build up and cause my oil consumption or not? I replaced the PCV valve on the oil filler neck a while ago(broke while working on something else).
The PO had the oil change records going back to the day he bought it(original owner) and they were all done at quick lube type of places. My theory so far is that maybe the years of cheap oil build up a ton of sludge and when I got it and started using better oil it maybe dislodged the sludge clogging the PCV system combined with the backwards filter causing blowby and/or to puke out of the PCV system behind the motor. With the wind it may be blowing the oil away fast enough that its not showing on the firewall or I am just not seeing it way up in the tranny tunnel. Something else I've noticed is the oil fill cap is always a bear to remove. It is a cam style cap so you can't really over tighten it but every time I go to remove it the thing feels welded on. Could that be a sign of pressure building up and causing the cap to become tight?
I've used castrol high mileage non-syn 5w30 since I've had it. Just recently switched to rotella t6 5w40 at the recommendation of a friend with no sign of improvement so far, actually have lost 2 qts at about half my oil change interval so its pretty much the same as the castrol.
Any thoughts? I forget at this point just how much oil but its a Lot, maybe 4-5 qts between oil changes. Not sure why I even bother with oil changes with the steady flow of fresh oil I should just be changing the filter at this point.
With the cost of oil I can't just keep pouring it down the drain like this forever. It runs great with no real issues other than sucking down the oil.
