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 ...

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 ...

Having fuel injectors on all mass-produced vehicles is one of the biggest automotive breakthroughs of the past few decades. If you've ever gone through having to start an engine with a poorly tuned ...

Sidd started as a freelance writer for TopSpeed back in 2017 and took up a full-time position a year later. 2,100+ articles later, he got into the editorial side of things and is now the sitewide ...

Having fuel injectors on all mass-produced vehicles is one of the biggest automotive breakthroughs of the past few decades. If you've ever gone through having to start an engine with a poorly tuned ...

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 ...

Gasoline direct injection, or GDI, is one of the most crucial bits of technology in the modern internal combustion engine. In engines equipped with GDI, highly pressurized gasoline is sprayed directly ...

We may receive a commission on purchases made from links. Bringing your car to a mechanic for simple automotive care routines has several benefits. It will prolong your car's life and help prevent ...

We've tested a bunch of pour-in fuel additives in Fact or Fiction over the years. Can you really blame us? With all their promises of horsepower and torque increases, detonation resistance, and ...

Fuel filters play an essential role in making sure your engine operates as efficiently as possible. Your vehicle’s engine relies on a stream of fuel getting pumped from the tank to the carb or ...

We may receive a commission on purchases made from links. Dirty fuel injectors can cause many problems, from minor annoyances like a rough idle or lower gas mileage, to more immediate and pressing ...