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 ...

Shutterstock // Setta Sornnoi Over time and miles, your car might start to slow down. It might not accelerate as quick ...

It may not have the coolness quotient of a high-lift cam or a rowdy exhaust system, but a properly functioning set of fuel injectors plays a critical role in optimizing overall engine performance.

Q: My sister-in-law in Chicago has a 2014 BMW 328. Her mechanic recommended that the fuel injectors be cleaned because of carbon buildup. The cost is $307. This procedure has never been done before.

Top Tier gasoline contains more effective detergents than federally required, which helps clean fuel injectors and reduce harmful carbon deposits inside the engine. Clogged fuel injectors and carbon ...