06/04/2018
i reply to a customer email as follows:
i know very little about mercedes, but i know people who know a lot about mercedes
i know nothing about BMW and know no one who knows anything about BMW
i owned an 87 325 cabrio about 10 years ago, maybe a little more. the owners manual said to use premium fuel, so i'd use 93. i kept getting told i was stupid and a dupe of the oil companies for using 93 and that 87 is fine. i tried 87 and it was fine, seemingly just as fine as 93. i drove around on 87 just fine
then i took it for an extended, hard run trip in the mountains, running it on 87. it wasn't ever fine after that.
so i guess i do know something about BMWs and that is to use premium and not regular if the company tells you so