Fuel injectors can get gummed up with dirt and fuel residue over time. Photo credit: David Traver Adolphus / Autoguide.com. Over time and miles, your car might start to slow down. It might not ...

Question: When using fuel system cleaner, why is it recommended that the gas tank be almost empty and to run the tank almost empty before the next fill-up? — D.N., Tinley Park, Ill. Answer: I always ...

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 ...

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 ...

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 ...

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 ...

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 ...