What should you do then if you accidentally put diesel fuel in your gas tank? Don't run the car, obviously, or at the very least, turn it off immediately and get it towed for repair.

For diesel-powered cars and trucks, adding (non-purposely, of course) unleaded fuel—in layman's parlance, "filling the tank with unleaded"—is considered the most egregious party foul of all ...

If diesel fuel gets mixed with DEF, it may cause damage to the engine and the fuel system. These are not covered by the vehicle’s warranty, so you better act as soon as you discover the mistake.

If your diesel vehicle isn't running properly, try a diesel fuel additive to restore lost performance. See the best diesel fuel additives at AutoGuide.com.

Diesel fuel. For all intent and purpose, it is the absolute life blood of engines that share its name; the 3.0L, 5.9L, 6.7L, and other powerplants that motivate the pickup trucks we drive. It's ...

Accidentally putting diesel fuel in a gasoline-powered vehicle is a more common mistake than one might think, especially since many fuel pumps often house the gas nozzle right next to the diesel ...

If you do crank your engine after adding Diesel Exhaust Fluid to your fuel tank, you likely won't be on the road for very long, as the presence of DEF in your fuel system will almost certainly ...