Base R85-5
Cleaner. Lighter. Faster.
Base Racing Ethanol is engineered around one principle: maximum performance comes from precision. Our Racing Ethanol is designed properly for GM 602 and 604 Engines. This insures complete combustion with instant throttle response and no hesitation.Base Racing Fuels are: Precision blended by weight. Manufactured using all-stainless blending systems. Formulated from the cleanest, highest-quality component stocks. Extensively laboratory, dyno, and race tested.
Product Information
Part# R85
Burn Rate: H SERIES / High Rate - Highest Performance
Octane: 103 Motor
Compression ratio: Up to 12.5:1
Fuel Type: Racing Ethanol
Color: Red
What Cleaner, Lighter, Faster Means
Cleaner
Cleaner refers to how the fuel is made. Base Racing Fuels are precision blended by weight using all-stainless equipment, allowing exact formulas and consistent results from batch to batch. We use only the highest-quality, cleanest component stocks, producing a fuel that burns consistently and maintains engine efficiency.
Lighter
Lighter refers to the quality of the cuts off the refinery. Lighter fuel components are inherently cleaner and more refined. BASE Racing Fuels are formulated using the narrowest cuts off the refinery, heavier, lower-grade cuts commonly used to reduce cost. Lighter fuels vaporize more efficiently and respond faster under load.
Faster
Faster is the result of precision. By combining cleaner blending methods, lighter components, and application-specific burn rates, BASE Racing Fuels allow engines to perform at their highest potential. Choosing the correct fuel for the conditions optimizes combustion, controls engine temperatures, and delivers consistent power.
| Engine | GM 602 Crate Engine , GM 604 Crate Engine |
|---|---|
| Compression Ratio | 8.5:1, 9.0:1, 9.5:1, 10.0:1, 10.5:1, 11.0:1, 11.5:1, 12.0:1, 12.5:1 |
| Fuel Type | RACING ETHANOL |





