Fuel System Cleaning Service. 1  When youâre driving down the road and notice your vehicle running sluggishly or lacking acceleration, it might be time for a fuel system cleaning. A clogged fuel system or fuel filter can rob your vehicle of fuel efficiency and performance. Jiffy LubeÂ® Technicians have the tools, materials and training to clean your fuel system of performance-robbing deposits and replace your old fuel filter when replacement is called for.