Sunoco E85-R 99 Octane Race Fuel

Sunoco E85-R 99 Octane Race Fuel
Sunoco Race Fuels

0.00 LBS
FREE product with purchase of 54 Gal. Drum
54 Gallon Drum must be added to cart first in order to add Drum Pump.

Sunoco E85-R 99 Octane Unleaded Racing Fuel 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

6 Reviews | Write a Review.

  • 5
    Great product just too expensive to ship

    Posted by richie brose on Apr 02 2024

    Bring down the shipping cost and I’ll buy a lot

  • 5

    Posted by Nick van Zyl on Oct 26 2022

    Great fuel for my High compression boosted BMW

  • 5
    Sunoco Racing

    Posted by n/a on Apr 21 2022

    Great service Great delivery time

  • 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
    Just what the doc ordered

    Posted by Vincent Carter on Nov 20 2020

    Best bang for your buck!

  • 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

Winterize Your Fuel System
Octane Stability: High Octane vs Low Octane Fuels
Mixing Fuels and Calculating Octane
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
Beyond Octane
Bizrate 2023 Platinum Seven Time Winner

Safety Data Sheet

Due to these products being hazardous, an additional shipping charge of $25.00 is automatically added to smaller "Ground Shipments". If you can order any combination of products that makes your total cart weight over 150 lbs. (which is considered "Freight Shipment"), this additional fee is waived. This can equate to considerable savings on shipping.

Sunoco Race Fuels is offering a Free Drum Pump with the purchase of a 54 Gallon Drum of Sunoco E85-R 99 Octane Race Fuel.
To add the free drum pump, first add the '54 Gallon Drum' to the cart, then click the blue 'Add FREE Drum Pump' button.

By entering your amount in the “Quantity” field, the price will automatically reflect the bulk discount below.