Cripton805
New Member
Why would you use 100 octane? 91 is prefectly fine unless you have some really high compression.http://m.oklahomacitygasprices.com/GasPriceSearch.aspx?t=tracy,ca&fuel=A
I only use Shell or Chevron and the bimmer takes "premium" only. I used 100 octane once at $7.20 a gallon... It was horrifying to see it count in dollars as fast as it did.