Fuel System Cleaning—Why it Matters

Close up detail of new car engine

Many drivers neglect their fuel system, but keeping it clean will prolong the life of your car, increase power and performance, and improve the fuel economy and drivability.

Fuel, whether gasoline or diesel, is delivered to your engine to generate the power needed to keep your vehicle moving. Unfortunately, the fuel leaves a residue as it moves through the fuel system. Although this may not seem like a big deal, it can cause significant problems. Gum and varnish build up inside the fuel lines, your throttle body, and injectors—much the same way plaque builds up inside arteries—and restricts the free flow of fuel. It can also clog your fuel injectors.

In addition, carbon accumulates on the combustion chamber, pistons, and valves, which interferes with the mixture of fuel and air and can prevent the valves from sealing properly. This leads to reduced power, wasted fuel, and the engine running rough. Over enough time, it can also cause expensive engine damage.

What Does a Fuel System Cleaning Do?

A fuel system cleaning clears out the gum and varnish from the fuel system and helps your injectors work properly again. The carbon deposits get dissolved; afterward, your engine will run like new. In general, you should have your fuel system cleaned every 12,000 miles or once a year. Some signs you may need your fuel system cleaned include:

  • Engine misfires
  • Rough idling
  • Excessive gas consumption
  • The tachometer moves quickly from low to high RPMs
  • The engine won’t start
  • Lag in acceleration
  • Poor gas mileage
  • Engine knocking and pinging
  • Increased emissions

Schedule a Fuel Cleaning at EuroCar Service

If you’ve noticed any of the above signs, schedule a fuel cleaning at EuroCar Service! As your local European vehicle experts, we see all European makes and models, including Audi, BMW, Mercedes, Land Rover, Mini-Cooper, Saab, Jaguar, Volkswagen, Volvo, Smart Car, and Fiat. Call us today at (206) 527-8828 or request an appointment online.