When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
would I gain any benefit from mixing 70% 91 and 30% 100? I'm not FI'd... prolly burns better, I would think.
If you have bolt-on's it'll help a bit. Make sure to reset your ecu after you put the 100 octane. 100 octane is safe for your cats so you can put much more than 70%.
In a N/A car, the timing is advanced giving just a little more power and the knock sensor will not detect any knock.
On a F/I car, it prevents detonation so most people run more boost or run the same boost but with confidence.
I do know that Downs Oil Co. has race fuel, because my co-worker gets his there for his 67 chevy nova.
Downs Oil Co. *
1296 Magnolia
Corona (909) 737-3421
I found a place in Simi Valley that has 100 octane for $5.99 a gallon I will drive by there today and get you guys the address. Any other spots you guys can updated us with.