Volkswagen made headlines by cheating on diesel emissions testing, but it isn’t the first time someone’s tried it. In 1998, the U.S. government levied $1 billion in fines against seven tractor-trailer ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

The once-almighty Mitsubishi Motors may have relegated themselves to building cheap small cars and Nissan-derived crossovers, but it was an indomitable powerhouse of innovation back in the day.

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 ...

The age of diesel-powered submarines began in 1912, and these subs dominated the waters for more than 40 years, through both World War I and World War II. In the U.S., this era ended when the last ...

You own a diesel-powered vehicle and are thinking of giving it a tuneup. But does your diesel even have spark plugs to change? The short answer is no, diesel engines do not have spark plugs. Instead, ...