Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine ...

Electronic fuel injection is older than you think, the earliest example being the failed Bendix Electrojector system from 1957. Bosch bought the rights to the Eletrojector system and developed it into ...

Along with improving reliability and performance by enhancing control of the air-fuel mixture, injectors also need less ...

The regulator controls fuel pressure for your engine. When it goes bad, signs include misfires, black exhaust smoke, stalling ...

Modern engines are more advanced and more demanding, which is why fuel chemistry is a critical factor when it comes to keeping them performing at their peak. Today’s engines face stress from heat, ...

We may receive a commission on purchases made from links. In nearly 40 years of working on my own cars, I've been exposed to a staggering variety of products that promised to make vehicles more ...

We may receive a commission on purchases made from links. If you spend any amount of time at an auto parts store, you've surely seen the wall of chemicals, additives, unguents, and potions claiming to ...

Ever wondered what went into the testing process for the MPG rating on your car? Here's how those numbers are derived and why ...

Gasoline fumes contain a variety of hydrocarbons that constantly evaporate from the engine and fuel tank into the atmosphere. If the fuel is in the atmosphere, it can cause pollution, even if the ...

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 ...