I know my car isnt buring any oil at all so its gotta have a leak somewhere. It just seems as if Im checking the oil and putting a quart in too often. Where would the most common oil leaks be found on a 3100? The top of the motor is dry, so its has to be somewhere towards the bottom end. Im starting to get a little concerned about it. BTW, its a '94 3100. It only has a little over 87,xxx miles and I switched from using the regular max life valvoline oil to the max life syntheic valvoline, my last oil change. I duno if that would make a difference or not.