When you need the best defense against low lubricity and harmful deposits, turn to Howes Diesel Defender for maximum lubrication and superior cleaning. Packing 2.5 times more lubricity than most competing products, Defender protects and extends the life of your system. Defender's state-of-the-art IDX4 Detergent both cleans and prevents all deposits, including Internal Diesel Injector Deposits (IDID), from forming on your injectors. Additionally, this alcohol-free injector cleaner safely removes water, leaving only pure fuel to burn. Diesel Defender also guarantees a minimum 5% increase in your fuel economy. There's nothing better than a product guaranteed to save you money!