The rumble sounds great in the driveway, but the real story is complicated.

Is it time to replace your old truck or tractor? Is it old enough that its engine has none of the exhaust-emissions equipment that’s been giving people fits in recent years? Have you decided to take ...

The Holy Grail for many hunters and fishermen isn’t an in-your-face largemouth that straightens a 2/0 hook or a big whitetail that makes the book. It’s a 4×4 with more power. Guys who push a ...

Building a custom exhaust system can be an extremely tedious process if the fabricator is uninitiated, ill prepared, or improperly equipped. But with the right tools, skills, and a decent array of ...

Diesel-powered trucks have really evolved over the last 20 years, from chugging workhorses to action-packed powerhouses. In the mid-'90s, a brand-new diesel rig might have given you a little more than ...

Increasingly stringent diesel engine exhaust emissions regulations have, over the past 20 years, reduced output of nitrogen oxides (NOx) by 95% and particulate emissions by 90% in heavy trucks. These ...

Why are we asking for donations? Why are we asking for donations? This site is free thanks to our community of supporters. Voluntary donations from readers like you keep our news accessible for ...

Diesel-powered vehicles require diesel exhaust fluid to reduce engine emissions, making them less harmful to the environment ...

Getting to the trail head and home again should not be this nerve-wracking. If you tow with a diesel truck, you can eliminate a lot of this worry by installing a supplemental exhaust braking system.

Even as immense as the 2017 GMC Sierra HD Diesel is, its fart cannon tailpipe looks as comically oversized as the one on your high school buddy's mad tight Honda Civic Si hatchback. As you may know, a ...

The owner of a 2016 Ford F-150 pickup is looking for help explaining why what looks like a horse's mane is now dragging along ...