If you're like a lot of folks, you may have been pretty surprised at the final tally the first time you filled up your Class A RV. Some of those monsters have gas tanks with a 150-gallon capacity. If ...

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 ...

A fuel called Hydrotreated Vegetable Oil (HVO) is a beacon of hope for many who believe it will keep diesel combustion vehicles on the road for longer. Others suspect it is just another eco-con.

There are many differences between gasoline and diesel-powered trucks beyond the fuel they use. Diesel engines tend to be larger with a longer stroke (the distance the pistons travel within each ...