The introduction next year of the Euro 6 exhaust-gas standard means that catalytic converters will become more expensive, above all for diesel vehicles. Scientists are working on a catalytic substrate ...

Walk into any parts store and you'll see the rows of glossy bottles promising to stop engine wear, boost fuel economy, and make your old clunker run like it just rolled out of the factory. The auto ...

We’ve probably all been woken up by a neighbor with a loud exhaust at some point in our lives, but how many of us have acted on it? We’d guess very few, but that’s certainly not the case this time ...