Quote:
Originally Posted by kivyee
Quote:
Originally Posted by MetalMK
I don't think Costco gas is that good. My 228i gets around 2L/100km more when using Costco 91 vs Shell V Power 91
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Fuel consumption is not a sign of how "good" gas is. Usually if there's ethanol in the fuel your consumption will go up. However you might have better knock resistance which means you can make more power. |
Costco 91 has no ethanol in it as per their pumps. It is listed as a "Top Tier" gas so they would only be getting it from a couple of suppliers if so.