Sunoco E85-R 99 Octane Race Fuel, 5 Gallon Pail

Sunoco E85-R 99 Octane Race Fuel, 5 Gallon Pail
Sunoco Race Fuels
40.00 LBS

Sunoco E85-R 99 Octane Unleaded Racing Fuel in 5 Gallon Pails contains 85% Ethanol. 

Sunoco E85-R is a blended racing fuel that contains highly refined hydrocarbons with 85% Ethanol. Due to its high concentration of oxygenates, there will be considerably higher fuel flow compared to conventional non-oxygenated fuel. Consult with your fuel injection system or carburetor supplier for correct air/fuel ratio calibrations. Sunoco E85-R is consistently blended to 85% ethanol compared to other conventional E85 Blends that can actually vary from 51 percent to 85 percent and generally never as high as 85 percent. If you are looking for a consistent year round E85 race fuel, this is the product for you. 

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. 


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 (PSI)  4.2 
10% Evaporation (°F)  166 
50% Evaporation (°F)  169 
90% Evaporation (°F)  171 
Stoichiometric Air/Fuel Ratio  9.8 
Oxygen (weight%)  30 
Ethanol (volume%)  85 
H/C Ratio  2.7 
O/C Ratio  .39 
Lower Heating Value (Btu/Gallon)  82,200 
Lower Heating Value (Btu/Pound)  12,500 
Leaded  No

2 Reviews | Write a Review.

  • 5
    Tested at 83% extremely satisfied with the product

    Posted by Guillermo on Sep 16 2021

    Arrived on time and tested at 83% extremely satisfied with the product, will be buying again

  • 5
    Great way to get fuel!

    Posted by None on Sep 10 2019

    Fast shipping, great products. Highly recommended. This is a great option to get race fuels when you live in an area where non is available

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Octane Stability: High Octane vs Low Octane Fuels
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Race Fuel 101: Lead and Leaded Racing Fuels
Specific Gravity – What Is It And Why Does It Matter?
Fuel Metering Basics for Oxygenated Fuels
Race Fuel Storage
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