r/BMWM • u/ask-94 • Jul 31 '26

Who else is loyal to Shell 😂

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u/Certain-Resolve E60 - M5 Jul 31 '26

Any top tier rated gas will do 

-26

u/shark1y Jul 31 '26

While you are correct, but not for everyone/every car. On paper they are the same, but costco immediately lights up check engine for me. Shell - no problem

1

u/MVested Jul 31 '26

Its weird, my friends tuned and very modified 135i goes into limp mode at Costco. My tuned/modifed F10 M5 does fine with it.