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My car was in need of refueling this evening, and while I was pumping gas
in, I noticed a sticker attached to the gas cap door. It said Unleaded
Fuel (of course) but what surprised me was that it said 91 Octane minimum.
I was at the time pumping in 87. OK, how bad is it for the engine to be
running 87? What benefit will 91 give me, besides what Audi tells me?
I have an 87 4000 CSQ, five banger.
Thanks so very much.
John Eickerman -- email@example.com
A man devoid of religion is like a horse without a bridle.