What are fuel additives? Do fuel additives really work? Fuel additives can clean fuel injectors, intake valves, pistons, and cylinder heads. What are the active ingredients, and how do they work? This ...

Fuel additives act as a magic potion, with an ability to transform a tired engine into a smooth operator - or, at least, that's what the advertisers would like you to believe. They cost from around £5 ...

Fuel additives act as a magic potion, with an ability to transform a tired engine into a smooth operator - or, at least, that's what the advertisers would like you to believe. They cost from around £5 ...