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 ...

Prior to joining TopSpeed, John held senior editorial positions at Autoblog and Winding Road, with his work also appearing on Motor1, Hagerty, Carsfancy, Autoline After Hours, and other outlets. John ...

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 ...