This animated film "Spark In The Firing Line" provides an in-depth look at the ignition system of modern motor vehicles, focusing on the role of spark plugs in igniting fuel within the combustion ...

For hot rodders, spark plugs are often nothing more than inspection tools that reveal whether an engine is running too rich, too lean, or just right. Street guys look for a nice tannish-brown tint on ...

Diesel cars make up roughly a quarter of the vehicles on Australia's roads, but while we refuel them in much the same way as a petrol car, less is known about exactly how diesel engines work – and ...