Diesel additives are used to enhance combustion efficiency and engine cleanliness, to clean diesel injectors and reduce fuel emissions. Diesel addtives clean the injectors and fuel supply system, and help to keep them free from impurities. Some additives can also aid emission test results during MOT testing. Add them to your fuel to improve the overall performance of your vehicle and increase fuel economy. We carry a range of different products to suit your particular needs and also your car's make and model. Brands include STP diesel additives, Redex, Wynn's, Millers and Carlube. There are options to suit different budgets as well as to fix different problems.