Seeing a pale cloud behind a Prius can feel like the car is sending smoke signals for help. Sometimes it is harmless condensation, especially on cold mornings, but sometimes it is coolant turning into ...

Even the novice driver with no mechanical ability knows when there's trouble, and smoke is never a good sign. White smoke from the exhaust can spell big problems with your engine, and the smoke's ...

A well-running and adequately maintained diesel engine should produce no visible smoke from the tailpipe. Modern diesel engines equipped with common-rail direct-injection technology have unlocked more ...

I'm concerned there is a serious issue with the car and it's going to cost me a fortune to get it fixed. Can the colour help me work out what is wrong?