Do diesel fuel additives really work, or are they just expensive snake oil? With diesel prices remaining painfully high, improving fuel economy, reducing regens and protecting expensive emissions ...

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 ...

Filling up a car with gas is second nature for most drivers. But what is not as well known is how dirty a car's fuel system can get over time. If you use low-quality gas without extra fuel additives ...

Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not run as smoothly as you remember, or the fuel economy may dip—but ...

As gas prices continue to soar, schemers are ramping up claims that they have just the right device or additive or some other gizmo for better fuel economy. But many of the claims are misleading or ...

The world of fuel additives is vast, often marketed as offering myriad benefits, from added performance, to engine cleaning, to fuel stabilization. That all said, GM has specific guidance regarding ...

Chevron says its new Techron cleans GDI injectors better, plus new rewards make switching easier.