sunoco fuel

[Dan Fletcher]

I'm sticking to VP. They've always treated me well and the fuel performs as desired. With that said, if I got jammed up and had to run Sunoco for a race here or there, which one would "cross" to C12? My research would indicate the "supreme". Does that seem correct? Thanks.

[cal]

Originally Posted by Dan Fletcher

I'm sticking to VP. They've always treated me well and the fuel performs as desired. With that said, if I got jammed up and had to run Sunoco for a race here or there, which one would "cross" to C12? My research would indicate the "supreme". Does that seem correct? Thanks.

That is correct Dan

Cal
S/ST HR 1177

[Bryan Worner]

Dan, you could also run the standard (purple). We have always run Sunoco. Started with blue, switched to purple and now back to blue these last few years. Haven't noticed much difference, except price.

[Michael Beard]

I've switched back and forth frequently since I have no place to put a drum and buy whatever's available. Sunoco Blue and C-12 are very close. Any performance difference would likely be just in the tuneup. Blue was .01 quicker in the 1/8th, for my particular tuneup this weekend.

[Duane Eiskant II]

Michael is right, if you were looking for all out and have a tune up for each fuel you may not see a difference. C11 always worked best for my stuff, even "tuning up" for each fuel. The big difference in the fuels are Sunoco is petroleum based, and VP uses all man made additives (synthetic) i just always hated the slime feeling from Sunoco. IF by some chance VMP isnt pumping fuel for that weekend the closest place to get it that i know of is AED Performance off exit 64 on I-95. 804-271-6076 ext 3

[Duane Eiskant II]

Allen from VMP said they will be selling fuel, and its sunoco. I believe they use to get it from hank thomas down in north carolina but not sure if they still do or not. Hope it helps!

[Mike Croley]

Originally Posted by Dan Fletcher

I'm sticking to VP. They've always treated me well and the fuel performs as desired. With that said, if I got jammed up and had to run Sunoco for a race here or there, which one would "cross" to C12? My research would indicate the "supreme". Does that seem correct? Thanks.

Here's the Motor Octane numbers for the leading race fuels. It helps when trying to figure out a crossover.
Sunoco 110 Motor Octane is 106
VP 110 Motor Octane is 107
Renegade Pro 110 Motor Octane is 108

Sunoco 112 Motor Octane is 109
VP C-12 Motor Octane is 108
Renegade Pro 112 Motor Octane is 109

[GTX JOHN]

I heard from other racers that Sunoco was not checking legal consistantly
at Vegas. I know one race bought a barrel fresh this Feb. and flunked
in Pomona and Vegas. So far no satisifaction or replacement from Sunoco to date. He is upset.

[HR9121]

I ran Sonoco at Gainesville and Charlotte and had no problems. I bought it on site at both races though.

[Michael Beard]

Octane is little more than "unburnable" stuff which allows you to run more timing and/or compression without getting into preignition/detonation. For real comparisons, you need to look at burn rates, density of the fuel, etc.

Here's a good resource for additional info on fuels. (I became aware of this page more than a decade ago, and I doubt it's been updated. It's possible that some formulations have changed, so check with the manufacturers):
http://www.smithtex.com/racing/fuelcomp.html