Improves fuel efficiency (MPG) up to 15%; Use before an MOT to improve emission test results Brings the vehicle back to the manufacturer’s design point; Lubricates engine walls Cleans the diesel particulate filter (DPF), catalytic converter (CAT) and Lambda sensor Cleans EGR valves, inlet valves and fuel injectors; Removes carbon deposits from exhaust valves Prevents loss of power by cleaning the entire fuel system; Restores engine performance