A lead-free version of Tetraboost intended for later racing and performance cars (1 litre, box of 6 x 1 litre)

Fast acting, solvent free, engine cleaning formulation (375ml)

Formulated to control oil leaks due to deteriorated seals and gaskets (375ml)

Kills an infestation of microbial slime in your fuel system (50ml, 12x50ml)

Delays the onset of fuel oxidation prevalent in modern petrol (50ml, 12x50ml)

Conventional lead replacement, octane booster and ethanol protection in convenient one-shot bottles (50ml, 12x50ml)

Engine Oil Additive designed to enhance the friction qualities and improve the anti-wear properties of engine oils

Extralube ZX1 is Britain's fastest selling Micro Oil Metal Treatment. Also suitable for use as an upper cylinder lubricant. (250ml)

Formulated to increase octane rating by up to 2.5 (375ml)

Limited Slip Differential Friction Modifier / Break-In additive - can reduce break-in temps by as much as 50 degrees F (4 oz)

Improves the efficiency and cleanliness of petrol injectors and carburettor jets (500ml)

Anti-friction treatment oil additive with PTFE for heavy loads and high temperatures (200ml)

The only true lead REPLACEMENT - adds Tetra Ethyl Lead (TEL) to replicate genuine 4 and 5 star leaded petrol (945ml, cases of 6x945ml)

Valvemaster Plus for lead replacement, ethanol protection and increased performance (250ml)

Valvemaster is the most widely used lead replacement (250ml)

A lead free fuel treatment, developed to protect against valve seat recession (500ml)

Millers VSPe Power Plus in a handy multi-use dispenser, treats 500 litres of fuel (500ml, box of 10x500ml)

A fuel treatment providing ethanol protection when using unleaded fuel (250ml)

A competition-derived valve seat lubricant and combustion enhancer (250ml)

A corrosion inhibitor for fuel tanks and fuel systems. Add to fuel before laying-up (250ml)

Dual purpose lead replacement additive for vehicles originally designed to run on leaded fuel and vehicles that run on LPG (1 litre)

Adds up to 4 cetane numbers and cleans fuel system components (500ml)

A product to be added to the oil in an engine or gearbox to help minimise leaks (250ml)

Fuel Stabilizer with Ethanol Shield® protects against the effects of ethanol corrosion (8oz / 237ml)