Two problems related to engine oil leaking have been reported for the 1998 Oldsmobile Cutlass. The most recently reported issues are listed below.
Vehicle was consuming anti freeze excessively. This was caused by the lower gasket in the engine leaking anti freeze. The anti freeze was going into the engine and mixing with the oil.
Shake, vibration is felt most when driving at speeds around 50-60mph. I was told that new tires would stop the vibration and that a balance and alignment would help in the meantime. The balancing and rotating as well as having the car aligned have not helped at all. I dont think it has anything to do with tires. The oil smell cannot be explained, there are no leaks.