Over time—often after just 4,500 to 5,000 miles—fuel injectors and valves can build up harmful deposits like gum, varnish, carbon, and lead. These buildups reduce performance, hurt gas mileage, and may even cause your vehicle to fail an emissions test.
At Grease Monkey®, our Fuel System Cleaning & Emissions System Cleaning service is designed to restore your vehicle’s power, improve fuel economy, and reduce harmful emissions. Our Certified Pit Crew Technicians use advanced cleaning solutions to remove stubborn deposits, so your engine breathes easier and runs more smoothly.
For optimum performance and lower emissions, most manufacturers and fuel system cleaner brands recommend a fuel system cleaning at least once per year, with a booster treatment at every oil change. This preventive maintenance keeps your car running its best and helps you avoid costly repairs. Most fuel and emissions system cleaner brands recommend the service be performed at least once a year.
Why Grease Monkey?
Trust our Certified Pit Crew members, superior fluids, and quality parts. At Grease Monkey®, you can schedule online in seconds or simply pull into a bay—no appointment necessary. We’re here to keep your engine clean, efficient, and road-ready.
A fuel and emissions system cleaning helps remove deposits that can build up in fuel injectors, valves, and other parts of the fuel system. Cleaning these deposits can help support smoother engine performance, better fuel efficiency, and lower harmful emissions.
Possible signs include reduced acceleration, loss of engine power, decreased fuel economy, rough performance, or difficulty passing an emissions test. These symptoms can have several causes, so a professional inspection can help determine whether fuel system cleaning is appropriate for your vehicle.
Service intervals can vary based on your vehicle, mileage, driving conditions, and manufacturer recommendations. Oilex Grease Monkey® recommends regular preventive fuel system maintenance, with many fuel system cleaner brands recommending a complete cleaning at least once per year.
It may help. Deposits in the fuel system can interfere with efficient engine operation. Removing buildup from components such as fuel injectors and valves can help restore more efficient fuel delivery and support better fuel economy.
Yes. Carbon and other deposits can contribute to inefficient combustion and increased emissions. Cleaning the fuel system can help reduce buildup and support cleaner, more efficient engine operation. However, an emissions test failure can have many possible causes and may require additional diagnosis or repair.
No appointment is necessary. You can visit an Oilex Grease Monkey® location for fuel and emissions system cleaning, or schedule an appointment online if you prefer.