If you chose a diesel pickup over a gas-driven one, then you're already ahead of the game when it comes to fuel economy. According to the Department of Energy, diesel vehicles can be 30-35% more ...

Finnish manufacturer Wärtsilä introduced an engine back in 2015 that was so good, it snagged a Guinness World Records title for being the most efficient four-stroke diesel engine shortly after its ...

Looking to improve your bike’s mileage and cut fuel expenses? These simple, proven tips focus on riding habits and ...