As for the question about synthetic oils,
"Synthetic Engine Oils
You may use synthetic engine oils if the recommended oil quality requirements are met, and the recommended maintenance intervals for oil and filter changes are followed."
So even with using synthetic oil, change it every 6...
Originally Posted By: semaj281
Originally Posted By: jorton
City stop and go driving style puts more stress on the vehicle. Especially brakes and transmission so keep up with routine maintenance on those.
If Jeep puts your driving style in the severe service category you may decide to run short...