Unleaded additive and octane booster. 10 x 500 ml bottles.Provides similar flame front control as lead, thereby enabling engines to run more advanced ignition timing without danger of pre-ignition or detonation.

• Adds up to 4 octane numbers to base fuel.
• Enables older competition engines to run on unleaded fuel*.
• Proven chemistry protects against valve seat recession.
• Provides similar flame front control as lead, thereby enabling engines to run more advanced ignition timing without danger of pre-ignition or detonation.
• Mixes with leaded, unleaded, lead replacement petrol, and other fuels containing octane enhancing additives including oxygenates such as ethanol and MTBE.
• Equally effective in modern engines fitted with knock sensors and catalytic convertors.
• Protects against the corrosive effects of ethanol found in modern E5 and E10 unleaded petrol.