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 ...

Fuel injectors that are working properly respond instantly to the demands of your engine. Unfortunately, even the best fuels contain impurities that can gum up the injector nozzles, reducing ...

While carbon buildup happens on essentially all engines, gasoline, diesel, N/A, or boosted, it's an increased concern in GDI engines. Standard Electronic Fuel Injection features injectors higher in ...

You’re walking down the aisle of your local auto-parts store and you happen to notice the shelf full of fuel-system cleaners. They might be nestled between oil additives and those bottles of goo ...

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 ...

I gotta 99 Jetta VR6 and the performance is starting to drag. I have replaced the plugs and wires. I also swapped the thermostat at the same time which I know does not really equal performance but I ...

If your car feels down on power, a trip to the garage might be in order, but checking these things before you go could save ...