HIGHTEC OCTANE BOOSTER is a petrol additive that raises the octane number of the fuel by up to 3 points. This makes it ideal where only lower-octane fuel is available, or for engines with higher octane requirements such as tuned and high-compression units. By improving the knock resistance of the fuel, it supports cleaner combustion and helps the engine deliver its intended performance.

Purpose and specifications

This additive is intended for all petrol engines and is especially useful when running fuels with low octane numbers or when an engine demands a higher grade than is on offer at the pump. The increased octane rating improves starting behaviour, full-load operation and idle quality. As a fuel treatment it carries no vehicle-specific OEM approvals; one container is added to the tank before refuelling and treats up to 50 litres of fuel.

• 0.250L container sufficient to treat one tank of up to 50 litres of fuel
• Raises the octane number by up to 3 points for better knock resistance
• Improves cold and warm starting as well as full-load operation
• Smooths idling and helps the engine reach its intended performance

When to use / change?

Use it whenever you must fill up with a lower-octane fuel than the engine prefers, before full-load driving, or to reduce knocking in a higher-compression engine. Add the dose to the tank before refuelling so it mixes with the fuel. It is a use-as-needed product rather than one with a fixed interval, and works across the engine's normal operating temperature range. Stored sealed and away from heat and direct sunlight, shelf life is approximately 5 years.

Frequently asked questions

How much can it raise the octane rating?
It increases the octane number by up to 3 points, which is enough to compensate for lower-grade fuel in most engines.

How much fuel does one bottle treat?
One container is sufficient for up to 50 litres of fuel; add it to the tank before refuelling.

Will it help reduce engine knocking?
Yes. By improving knock resistance it helps prevent pre-ignition and supports smoother full-load operation.

Suitable for: all gasoline vehicles requiring higher octane fuel. Always verify the exact approval against your vehicle's owner manual before use.