octane

Hey all, today i had my stock spark plugs replaced with Densos and the mechanic had showed me the stock spark plugs had a reddish hue deposit on them from high octane boosters/additives and asked if I used any. Let him know I have not and let him know I use 93 octane gas from Costco Gasoline and...

I'm using the RaceChip GTS Black in my 3.3 Stinger. I was fortunate to come across a gas station on my commute to work that sells 94, 96, 98, 100, and 101. I filled up with 94 and put my chip in Race mode and car in Sport. Felt like more power to me, but then maybe it was a self-fulfilling...