Classic Valvemaster Plus Octane Boost


๐Ÿ‡ฆ๐Ÿ‡บ We ship the Castrol Classic Valvemaster Plus Octane Boost anywhere in Australia!

In stock

Australian Authorised Supplier – Lawless Classic Oils

Never compromise quality. Our products are 100% Castrol Classic Authentic.


Valvemaster Plus provides the best protection against valve seat recession after lead, while keeping your fuel system clean and providing excellent corrosion protection. Valvemaster Plus also contains a friction modifier to improve performance and economy. Should only be used in vehicles that do not have a catalytic converter.

All products in the Valvemaster Fuel Additive range contain Etha-Guard. Etha-Guard counteracts ethanolโ€™s hygroscopic nature, preventing moisture and damage to your fuel system, stabilising E5 & E10 petrol.

One millilitre treats one litre of fuel – One bottle treats 250 litres of fuel.


*Valvemaster lead replacement: Ultimate protection against valve seat recession. Protects your engine under all driving conditions. Reduces knocking.

*Etha-Guard ethanol stabiliser: Enables use of E5 & E10 petrol. Prevents corrosion in fuel systems. Prevents acidity in ethanol fuel. Keeps fuel system clean. Protects your vehicle in use or storage; also prevents damage to fibreglass fuel tanks.

*Octimise Plus friction modifier: Enhanced performance and economy. Increases acceleration by up to 3% and increases economy by up to 2%


Additional information

Weight 0.30 kg
Dimensions 5 × 5 × 22 cm



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Lawless Classic Oils

ABN 40 667 871 730

Information and enquiries: call Michael 0417 929 966

Authentic Castrol Classic Products

Castrol Classic ranges have a partnership with Castrol that goes back over 30 years and we are proud to have been appointed Authorised Australian supplier for Castrol Classic lubricants

Castrol Classic Oils. ‘CASTROL and the Castrol logo are trade-marks of CASTROL Limited, used with permission’.