There’s simply no replacement for the real thing. Fuel additives can get you pretty darn close in many cases, though. Not everyone has the means to tear down an engine to clean things up, high-test ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

If you thought diesel fuel additives were merely store-bought products at your favorite auto store, you'd better think again. Fuel suppliers, refineries, and manufacturers are the biggest market for ...

Before we get into this discussion about the best diesel fuel additives, it's important to understand exactly what diesel additives are. During the refining process, diesel fuel receives a rating ...

Pilot Flying J, Love’s and TravelCenters of America are among truck stops using cold-flow broad spectrum additives to treat fuel at cold-weather locations for the winter. “With the exception of our ...

John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil. AP Photo/David Zalubowski ...

We may receive a commission on purchases made from links. Drivers trying to get the most performance out of their diesel trucks — and there are many things you can do — will sometimes resort to fuel ...

If your diesel car, truck, or even farm equipment isn’t running right anymore or is sitting parked for a long time or in long temperatures, then diesel fuel additives might be exactly what you need to ...

Small engine maker Briggs & Stratton Co. has introduced a fuel additive that it says will help prevent problems in gasoline engines using ethanol. Petroleum companies use a 10 percent blend of ethanol ...