Question 1

Do fuel additives actually work or is it marketing?

Accepted Answer

Quality additives from reputable brands have a demonstrable effect on cleaning injectors and valve deposits, particularly in engines used frequently on short city trips. For a well-maintained engine with regular motorway driving, the effect is minimal.

Question 2

Can I use an oil additive with any type of engine oil?

Accepted Answer

Not always. Some additives are incompatible with the additives already present in the oil, particularly with longlife oils containing specific DPF-compliant additive packages. Check the product specifications or contact the manufacturer.

Question 3

How often should I use a fuel additive?

Accepted Answer

It varies by product and application. Cleaning additives are typically used every 5,000 to 10,000 km or when there is a noticeable drop in engine response. Anti-gel is used preventively each winter season.

Question 4

Are fuel additives suitable for LPG vehicles?

Accepted Answer

Petrol and diesel additives are not intended for LPG systems. There are specific LPG valve lubricants that are injected through the gas system. Never use the wrong product in an LPG installation.

Question 5

Can an oil additive stop a leaking head gasket or oil loss?

Accepted Answer

Some sealing additives cause rubber to swell slightly and can temporarily reduce minor leaks. They don't solve the underlying mechanical problem and are a temporary measure, repair the root cause as soon as possible.

Fuel & Oil Additives

Bilt Hamber Gas-Mac Fuel Tank Corrosion Inhibitor

Frequently asked questions