The whole field of oil additives and fuel economy enhancers has me confused. If they work, why hasn't the world beaten a path to their door? Especially now, with fuel prices at unprecedented highs.

If you use low-quality gas without extra fuel additives and detergents, your fuel system and injectors will get dirty. Here’s ...

Most fleets would confess to using diesel fuel additives from time to time, most likely in the winter to prevent gelling. But there are fleets, lots of them it seems, that regularly treat their fuel ...

Fuel injector cleaners are additives that are poured right into the gas tank and remove carbon deposits and other contaminants from the injectors. This can lead to better fuel economy, improved ...

The central truism regarding any fuel additive is that sometimes you need it—and sometimes you don’t. Aside from the untold legions of snake oil substances touted to improve fuel economy, there are ...

Cummins Inc. recently endorsed two fuel additives, marking the first time the diesel engine maker has taken such a step. The original equipment manufacturer’s move reflects an evolution of fuel ...

Given the chore of changing it every few months, the typical motorist realizes that engine oil degrades over time. Some will also notice the mysterious codes for the different grades—10W-40, 5W-30, ...

With gas prices at record high levels statewide, drivers may be tempted to buy gasoline additives that claim to improve vehicle mileage. The Automobile Club of Southern California is advising ...

Wouldn’t it be nice to pour something in or bolt something on, and see a significant increase in fuel economy from your vehicles? Sadly, experts agree that such things don’t really exist. Especially ...