Millers Oil CVL (Lead Replacement) - Competition Valve Lubricant from Millers is the unique solution to running race engines on unleaded fuel.The CVL formula provides flame front control. This protects the engine against detonation damage. It is also formulated to lubricates valve seats and typically adds 3 octane to base fuel. Protects against valve seat recessionProtects against the corrosive effects of Ethanol used in E5 and E10 pump fuelAllows engines to run more advanced ignition timing without pre-ignition occuringAllows classic engines to run on unleaded fuelSuitable for leaded or unleaded fuels it is equally effective in modern engines but is only recommended for occasional if your vehicle is fitted with a catalytic converters fitted.250ml bottle treats 20 litres of fuel.Allowable for use in Brisca F2 regulation 213.Technical Data Sheet