Im selling my 92 525 (listed in classifieds), for a 93 325is. They both have the same mileage. 107,000. The car ran swell and got up to 125 mph in no time. I cant wait to make some special changes to boost performance. Whats the best oil for this vehicle? I was using M1 0w-40 synthetic in my 5. Thanks for any input on my new e36 aquisition!