Civic 2016+ 1.5 Turbo
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I’m trying to figure out how to find 93 octane in California. I read somewhere that I can put a gallon of E-85 in my tank with 91 not sure if that’s true or not. I want to test this out because I’ve been getting knock with the +9 psi tune at WOT even though I turned off artificial knock at WOT. Any feedback would be appreciated thanks!