Frequently Asked Questions
Which product is right for my vehicle?
Both Classic Valvemaster and Classic Valvemaster Plus must only be used in vehicles that are not equipped with a catalytic converter. Both products contain Etha-Guard additive, and are already well known in the classic car world for offering the best protection against valve seat recession and pinking. With the addition of Etha-Guard, Valvemaster now offers a higher level of protection to even more vehicle owners. Etha-Guard stabilises E5 and E10 petrol, preventing damage to your fuel system.
Classic Valvemaster Plus also contains a friction modifier. This has the further benefit of increasing acceleration by up to 3%, and increasing fuel economy by up to 2% - meaning it pays for itself!
For owners with younger vehicles that have a catalytic converter, or who do not require valve seat protection, Etha-Guard Plus gives you the best protection against ethanol damage. Etha-Guard Plus also contains a friction modifier, giving improved acceleration and economy.
Below are some frequently asked questions about the Valvemaster range:
Is Classic Valvemaster™ the same as Castrol Valvemaster™?
Castrol Valvemaster was designed for use in classic motor vehicles, hence the name change to Classic Valvemaster. Classic Valvemaster is a time tested lead replacement additive that provides ultimate protection against valve seat recession. Todays’ ethanol blended petrol is not compatible with classic motor vehicles, therefore Classic Valvemaster and Classic Valvemaster Plus contain Etha-Guard, an ethanol stabiliser to combat the harmful effects of ethanol. Etha-Guard prevents acidity and corrosion to enable classic vehicles safe use of E5 and E10 ethanol blended petrol. Classic Valvemaster Plus also contains Octimise Plus, a friction modifier providing increased acceleration and economy.
Can I use E10 petrol in my classic car?
Valvemaster and Valvemaster Plus contain Etha-Guard ethanol stabiliser, allowing you to use ethanol blend petrol in your classic. For younger and modern classic cars and bikes, Etha-Guard Plus is available. Etha-Guard Plus does not contain the valve seat protection additives, and can be used to stabilise ethanol in vehicles with or without a catalytic converter.
Will ethanol petrol damage my classic motorbike?
A further issue with E5 and E10 petrol for classic bikes, is ethanol degrading fibreglass fuel tanks. Etha-Guard Plus can be used to stabilise the ethanol content of petrol, and protect your fibreglass tank whether in use or in storage.
Does Valvemaster™ Plus boost acceleration?
Valvemaster Plus contains a friction modifier Octimise-Plus within its formula, providing instantaneous acceleration by up to 3%.
How much Valvemaster™ do I need to use?
Valvemaster and Valvemaster Plus are very economical and easy to use. One 250ml bottle will treat 250 litres of petrol. The unique bottle design has a user-friendly self measuring device for instant visual indication of how much additive to use. This provides motorists with the flexibility to fill up with varying quantities of petrol.
can I switch to Valvemaster™ from a different additive?
Yes. Valvemaster and Valvemaster Plus are both compatible with most other commonly used fuel additives. However, you should avoid mixing with sodium based products. We recommend that you first reduce to a minimum the fuel level in your tank before refilling with unleaded fuel and Valvemaster or Valvemaster Plus.
Can I use Valvemaster™ if my engine has carburettors?
Valvemaster or Valvemaster Plus will work effectively in cars fitted with either carburettors or fuel injection.
Is Valvemaster™ suitable for catalytic converters?
No. Valvemaster and Valvemaster Plus should not be used in vehicles fitted with a catalytic converter. For ethanol protection, owners of catalytic converter equipped vehicles can use Etha-Guard Plus.
Where can I buy Valvemaster™ and Valvemaster™ Plus?
Valvemaster range is available throughout the UK, across Europe and countries worldwide. In the UK you can also purchase from this website. For assistance in locating Valvemaster outside of the UK, you can visit our where to buy page or contact us here.
