- 13 June 2020
I just acquired a Mine's Racing ECU for my JDM NA1, it's currently being shipped to the U.S. In reading thru the Mine's website, it seems that they tune their ECU for the 100 Octane fuel readily available in Japan. However, that would mean 100 RON octane, which is equivalent to about 95.5 AKI here in the U.S. I can get 93 everywhere, but 100 AKI is nearly impossible to find. I can add octane booster additive into the 93, but how much octane increase would that really get me, maybe 1-2 pts higher? How else can I easily get close to 95/96 AKI if I can't source any 100 octane fuel to mix together? And for those with experience running ECU's tuned for Japanese 100 RON octane premium fuels, will running straight 93 AKI be too lean? My NA1 3.0L is stock. Thanks for any wisdom that anyone can pass on!