View Full Version : octane numbers

06-08-2005, 09:08 AM
i just have a quick question. i fill up my car at a sunoco right next to my house. they offer both 93 octane and "ultra 94." is there any advantage to filling up 94 as opposed to 93? thanks


06-08-2005, 10:24 AM
Stock heads/cam & compression probably "might" lose a little kr on a really hot day at the track.....on the street not worth it.

06-08-2005, 03:44 PM
cool. thanks for the reply.

06-08-2005, 03:48 PM
wish they had that kind of stuff here all we have here in tucson is 91!

06-08-2005, 04:03 PM
Just the 91 garbage here as well. There are a couple of 76 stations with race gas, I don't know the octane # though.