"Catalytic converters reduce the toxic and polluting gases given out by the engine. Never use leaded or lead-replacement petrol in a motorcycle with a catalytic converter; even one tankful can permanently damage the system."
Driving Theory Test is the online platform for UK drivers that want to study and pass the UK theory test on their first try. The system is designed to teach you the study material interactively. Plus, our practice questions cover all sections of the Highway Code. So, you have a comprehensive review of all the need-to-know information to sit the DVSA theory test.