Fuel System and Emissions

Clean a dirty throttle body yourself

All petrol engines have a throttle valve. The throttle body controls the amount of air entering the engine. Without oxygen the engine cannot run. The throttl...

What are additives Before you decide one to buy additive for your car, it is important that you know what exactly an additive is. Additives are agents that c...

Engine idles rough

Learn why an engine may idle roughly, how intake or fuel system contamination can cause it and when a fuel system cleaner may help restore smoother running.

How do I increase the cetane number of diesel?

Discover how to increase the cetane number of diesel, reduce engine noise, improve ignition quality and support better diesel performance with an additive.