Just a quick question that has probably been asked before. Its an issue I've never experienced with any other Jeep (I have a 92 YJ also).
We bought our Jeep Commander in 2008 and have since put 205k miles on it. Its clean and serviced regularly. At about 100k, I've noticed oil consumption … like 5 quarts in a weeks time. I use FULL SYNTHETIC, which seems to last longer than conventional oil, but still burns. The vehicle blows no smoke, no loss of power, no leaks, no mix of oil/coolant. Nothing. It is very strange.
We use the vehicle as our camping and recreational vehicle … as it runs very well, very strong and comfortable. I check the oil before every use. I took it camping last weekend, topped off the oil, drove about 200 miles and it was a quart low. In another example, I checked the oil, added 1 quart and drove the vehicle about 1000 miles (over 7 days) … at the end of the 7 days I checked the oil and there was NOTHING in it.
Has anyone had issues like this? Any of you pro mechanics ever heard of anything like this? Maybe just a Commander issue!?