C85 Ethanol Racing Fuel – High-Performance E85 Alternative for Maximum Power
Looking for the best E85 racing fuel? C85 Ethanol is the proven, high-performance choice for serious racers and performance car owners who want reliable power gains and consistent results. Blended with a precise, repeatable proportion of ethanol and premium components in every drum, C85 delivers up to 4% more power and torque than conventional E85 fuels. If you want a stronger, more consistent E85 race fuel that works brilliantly in drag racing, circuit racing, off-road and fast road applications, C85 is the answer.
We run C85 in our own projects at Nforcd and it’s a customer favourite for turbo, supercharged and high-compression engines. The combination of high knock resistance and the cooling characteristics typical of ethanol blends makes it a go-to choice for reliable performance, aggressive timing, and repeatable results. If you’re switching from pump E85, you’ll appreciate C85’s consistent blend drum to drum, helping your tune stay stable and your car run hard every pass, every lap.
Why choose C85 Ethanol over regular E85?
- More power: Up to 4% more power and torque than conventional E85.
- Consistent blend: Precisely formulated in every drum for reliable tuning and repeatable performance.
- High octane performance: Estimated RON 106 for outstanding detonation resistance.
- Unleaded race fuel: Suitable where unleaded specification is required.
- Versatile applications: Ideal for drag racing, circuit/track, off-road, and general motorsport use.
Key specifications
- RON: 106 (estimate for ethanol fuels)
- Leaded: No
- Ethanol %: 77%
- Oxygenates %: 31.97%
Note: The octane ratings for ethanol fuels are estimates. Conventional ASTM laboratory octane tests cannot accommodate the high oxygen content of ethanol fuels.
Compatibility and tuning notes
- Injector caution: Do not use with fuel injectors that are not compatible with MTBE.
- As with any switch to high-ethanol content fuels, most setups will benefit from an appropriate ECU calibration to maximise power, drivability and safety.
Who is C85 Ethanol for?
C85 is perfect if you’re searching for: E85 racing fuel, C85 ethanol, buy C85 UK, high octane E85, ethanol race fuel UK, unleaded race fuel, drag racing fuel, circuit racing fuel, off-road race fuel, track day fuel, flex fuel tuning, and performance car fuel. It’s a superb choice for turbocharged, supercharged and high-compression NA engines where detonation resistance and consistent composition are critical.
Trusted by Nforcd and our customers
We’ve used C85 extensively and our customers love the stronger performance compared to regular pump E85 and other ethanol blends. If you want an E85 alternative that starts cleanly, tunes consistently and puts down power reliably, C85 delivers.
Fitting, supply and support
Need help selecting the right E85/C85 racing fuel for your setup, or looking for supply and tuning support? Speak to the team at Nforcd in Warwickshire. Request a quote or advice at Sales@nforcd.com.