09/30/2026
Does it really matter if you put 87 instead of 91 octane in your BMW? The fuel you choose can affect how the engine responds, especially when it was designed to run on premium gasoline. Read our blog to learn why 91 octane matters and what using a lower octane can mean for your BMW.
Learn why BMW engines require 91+ octane fuel, how lower octane affects performance, and ways premium fuel protects your engine in Walnut Creek.