Wynns Diesel Injector Cleaner 325mlWynn's Injector Cleaner for Diesel Engines is a treatment, which increases engine performance, reduces black smoke and improves MPG. Cleans injectors and restores spray pattern. Improves the ignition quality and combustion of diesel fuel. Facilitates cold starting. Reduces diesel knocking noises and soot particulates. Reduces black exhaust smoke. Cleans and protects the entire fuel system against rust and corrosion. Lubricates pumps and injectors. Prevents fouling of the fuel filter. Harmless for all after-treatment systems (EGR, Turbo, DPF, SCR, etc.).