Lucas Complete Fuel System Renewal Kit

Over thousands of miles, gum, varnish, carbon deposits, and corrosion build up throughout your fuel system — injectors, fuel lines, intake valves, and the combustion chamber all collect residue that robs performance and efficiency. The Lucas Complete Fuel System Renewal Kit tackles that buildup in a structured four-step, four-fill-up approach.

Inside the box you get one bottle of Lucas Deep Clean Fuel System Cleaner and three bottles of Lucas Upper Cylinder Lubricant and Injector Cleaner, each at 5.25 oz. The Deep Clean goes in first to aggressively strip deposits from the entire fuel system and combustion chamber, while the three follow-up doses of Upper Cylinder Lubricant maintain that cleanliness and lubricate injectors over the next three tanks. Lucas notes the kit eliminates pinging and knocking caused by cylinder deposits and reduces NOx, carbon monoxide, and hydrocarbon emissions.

The four-step format is easy to follow — one treatment per fill-up, working through the box over normal driving. It is compatible with all fuel types and vehicle makes. For vehicles that have gone a long time without any fuel system maintenance, this kit is a straightforward way to address the accumulated residue without any wrenches.