Nissan GT-R Forum banner
best gas...chevron 94 sucks
1-1 of 1 Results
  1. Canada
    Hey Fellas; I have a Switzer R1K and have recently been sent a retune/flash for a more "ultimate" pump tune. These tunes were done on 93 US Octane which contains about 10% Ethanol. I figured the Chevron 94 Octane should do the trick. Alas, knock sums indicate it does not. Boyan from...
1-1 of 1 Results
Top