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Discussion Starter #1 (Edited)
So I've had the +6psi high-octane tune on my '16 Civic for nearly three years now. I tuned it at about 4k miles, at almost 68k now.
My question is, for the first about ~45k miles I pu https://testmyspeed.onl/t nothing but premium gas (93 octane). I started using 87 octane exclusively because I just didn't want to spend the extra at the time. I've used 8 https://19216811.cam/7 up until now at 68k. I know this makes you lose a few HP/torque.
So if I switched back to 93, would my car need to get "re-used" to the high octane fuel? Or would that small amount of extra power be back relatively immediately once I fill it with 93? Xender – Download Xender App for Android, iOS, PC & Mac 2019
 
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