Is Sunoco E85-R the same as pump E85?

[greenflash00]

Assuming of course they both tested to be 85%. The a/f ratio should be the same with either fuel correct? Didn't know if it had other additives or something?

 

[98 Saleen Cobra]

It's cut with race gas.. Iirc you need to be tuned on it.. I could be wrong though.

 

[SVT_Troy]

Iv'e never heard of it. How much is it a gallon compared to normal E-85

 

[Brutal Metal]

Most race gas manufacturers (VP, Renegade, etc..) Don't use a pump gas ethanol blend like you'd see at your local station, it's made with premium cut alkylate and ethanol which produces a high quality consistent race fuel that eliminates the need for changing tune-ups. You'll be fine...

 

[SID297]

I haven't seen it before. Is it available at the pump near you?

 

[Brutal Metal]

I haven't seen it before. Is it available at the pump near you?

Sid the R comes in the 5 gallon aluminum cans and bigger drums, not sure if it's offered at the pump, I'm thinking that would be just a normal ethanol blend like you'd find at a rival gas station..

 

[super snake 351]

I have never heard of this but im going to google it now

 

[SID297]

Sid the R comes in the 5 gallon aluminum cans and bigger drums, not sure if it's offered at the pump, I'm thinking that would be just a normal ethanol blend like you'd find at a rival gas station..

I see. Thanks for the info.

 

[04sleeper]

Because the fuel is cut with Race gas with a lower stoichiometry than regular 87 octane, it shows a slightly lower stoichiometry. 9.8 VS 9.85 respectively.

Here is the info on it:

Home » Fuels » E85-R
E85-R

Sunoco E85-R is an unleaded racing fuel containing 85 volume % ethanol. It can only be used in fuel systems designed specifically for E85 blends. Because it is highly oxygenated and requires increased fuel flow compared to conventional non-oxygenated fuels, consult with your fuel injection system or carburetor supplier for correct air/fuel ratio calibrations.

Sunoco E85-R is blended to consistently contain 85% ethanol. Conventional E85 can vary from about 51% to 83% ethanol or so but rarely contains 85% ethanol. Conventional E85 can also vary seasonally; the composition of Sunoco E85-R race fuel does not change. The non-ethanol portion of Sunoco E85-R is comprised of highly-refined race fuel hydrocarbons for stability and consistency. Sunoco E85-R is the racer’s fuel of choice where E85 fuels are allowed.

Sunoco E85-R does not contain metallic additives and will not harm oxygen sensors. It should be stored in dark, tightly sealed containers where the temperature is stable. Handled under such conditions, shelf life is in excess of 1 year. Check with your fuel system and fuel container manufacturers for compatibility with ethanol and E85 blends. Please note that due to the high oxygenation of E85-R, the octane values are estimated.

Note: the octane ratings for E85-R are estimates. The conventional ASTM laboratory octane tests cannot accommodate the high oxygen content of fuels like E85-R.
Disclaimer:
Legal in California only for racing vehicles in sanctioned events. Octane is estimated.
Legal:
For off-road and racing applications only.
Click Arrows to Expand
Color Pale Green
Octane (R+M)/2 99
Research Octane 104
Motor Octane 94
Specific Gravity 0.79
Weight (lbs/gallon) 6.6
Reid Vapor Pressure 4.2
10% Evaporation 166
50% Evaporation 169
90% Evaporation 171
Stoichiometric Air/Fuel Ratio 9.8
Oxygen (weight%) 30
Ethanol (volume%) 85
HC Ratio 2.7
OC Ratio 0.39
Lower Heating Value (Btu/Gallon) 82200
Lower Heating Value (Btu/Pound) 12500
Aromatics 6
Leaded No

Road Course
Asphalt Oval
Dirt Oval
Off-road
Rally
Drag
Truck and Tractor Pulling
Miscellaneous Nitrous, Superchargers, Turbochargers

 

[greenflash00]

Thanks for all the info guys! :beer: