My 2002 Jeep KJ is approx 135,000 miles and I've only had it the last 2,500 (since last Nov). I know the last owner changed the oil regularly with conv. but I don't know if it was overheated. It also doesn't leak- as far as dripping onto the ground or on the tranny. What's been done: New Rear lower control arms New Mopar PCV valve Mobil1 Full Synthetic Oil & filter It burns an average of approx 1 quart per 200 miles. I'm thinking I'll need a compression test. Are there any issues I might experience if I continue to DD this (I religiously check and refill the oil due to the consumption)? I already get 12-17 mpg babying it and the speed limits are 55 where I drive. I also let it get to operating temp, as well. Thanks guys!