Oilsyn Diesel Race Ultra – Converts Pump Fuel into Race Diesel

Converts Pump Diesel into Race Fuel: Regular pump diesel lacks the cetane, lubricity, and combustion efficiency that high-performance diesel engines demand. Diesel Race Ultra converts standard pump diesel into a premium race-grade fuel using a proprietary multifunctional formula. Up to 8 point increase in cetane number for maximum power, sharper throttle response, and faster cold starts. 250ml treats 50L of diesel. For road and track cars.

Proprietary Lubricant and Friction Modifier: Orisyn proprietary ester-based lubricant outperforms conventional diesel fuel lubricants and 2-stroke oil used as a diesel additive. Lubricates the upper cylinders for enhanced performance whilst protecting high-pressure fuel injection systems from low-lubricity ultra-low sulfur diesel.

Enhanced Combustion and Soot Reduction: Fueloxy combustion catalyst maximises combustion efficiency, helping ensure all fuel is converted to usable energy during the combustion process. Results in increased engine torque, improved throttle response, and lower exhaust emissions. Reduced soot output helps keep the DPF, turbo, and EGR cleaner over time, reducing maintenance costs and the frequency of forced DPF regeneration cycles.

Maximum Performance from Every Tank: Raises cetane number by up to 8 points, transforming the combustion characteristics of standard pump diesel. Higher cetane delivers reduced ignition delay, more complete combustion, increased torque and horsepower, smoother acceleration, and elimination of diesel knock. For engines that respond to higher cetane, the difference is immediately noticeable from the first tank.

Simple Single-Tank Treatment: Pour the full 250ml contents into the fuel tank before refuelling. No measuring required. Treats 50 litres of diesel in a single application. Use whenever you want maximum performance from your fuel. Compatible with all diesel engines and exhaust aftertreatment systems, including DPF, catalytic converter, and AdBlue/SCR. Proprietary formulation developed and produced in the UK.

Oilsyn Diesel Race Ultra is a high-performance diesel fuel treatment that converts regular pump diesel into race-grade fuel in a single tank. Developed for road and track car enthusiasts who demand maximum power, throttle response, and protection from every litre of fuel, it delivers a measurable performance upgrade that is immediately noticeable on engines that respond to higher cetane fuels.

Standard pump diesel is a compromise. It meets minimum specifications but lacks the cetane quality and combustion efficiency that many modern high-performance diesel engines are designed to exploit. Diesel Race Ultra addresses this gap with a proprietary multifunctional formula combining three advanced technologies: a high-purity 2-EHN cetane improver delivering up to 8 points cetane increase, the Orisyn proprietary ester lubricant and friction modifier, and the Fueloxy combustion catalyst.

The cetane improver raises the fuel’s ignition quality, reducing ignition delay for a more progressive, complete burn. This translates directly to increased torque, sharper throttle response, smoother acceleration, elimination of diesel knock, and quieter cold starts. At up to 8 points cetane increase, Diesel Race Ultra delivers a greater cetane boost than many super diesel fuels available at the pump.

The Orisyn ester lubricant provides upper cylinder lubrication where oil film coverage is limited, reducing friction between piston rings and cylinder walls. It also protects high-pressure fuel injection systems from the accelerated wear caused by low-lubricity ULSD fuels. Orisyn is safe for the crankcase oil and can enhance lubrication in cases where DPF regeneration forces fuel dilution into the sump.

The Fueloxy combustion catalyst maximises combustion efficiency, ensuring fuel energy is fully converted to usable power rather than lost as unburned hydrocarbons and soot. This reduces exhaust emissions, lowers soot output reaching the DPF, and helps reduce the frequency of forced regeneration cycles.

Compatible with all exhaust aftertreatment systems, including DPF, catalytic converter, and AdBlue/SCR. 250ml treats 50 to 100 litres of diesel. Pour the full contents into the fuel tank before refuelling. Use whenever maximum performance is required. Proprietary formulation developed and manufactured in the UK.