Features and Benefits Today's ULSD fuel lacks vital lubricity. By using Diesel Defender with every fill up, critical lubricity is added back into the diesel fuel system to combat premature wear of injectors, pumps, and upper cylinders. By safely removing water, Diesel Defender leaves only pure fuel to burn. Your clean injectors then allow for a steady spray pattern, so none of that fuel is wasted. When used regularly, Diesel Defender provides a minimum 5% improvement in fuel economy. Uses IDX4 Detergent to attack and destroy even the toughest carbon deposits. When used as directed, Diesel Defender is designed to clean the entire fuel system within three treatments and prevent future deposits from forming. The removal of these deposits keeps the diesel fuel system performing well and increases power. Many products emulsify or disperse water and frequently use alcohols or solvents that can do damage to your engine. Diesel Defender is a premium, petroleum based product that demulsifies water, safely removing it from diesel fuel. Why Use Howes Diesel Defender? Whether you’re a heavy-duty driver, owner of a big ol’ pick-up truck, or someone who takes your family on country-wide RV trips, you’re likely familiar with diesel fuel and its benefits over gasoline. Diesel engines are more efficient than gas engines, making them ideal for larger trucks and vehicles. When you’re hauling with an 18-wheeler or pushing through the waves with your boat on the weekends, you’re going to be looking for power. They have intricate fuel pumps that are prone to harmful injector deposits. Today’s Ultra Low Sulfur Diesel Fuel (ULSD) is severely lacking in lubricity, which can lead to the premature wear of injectors, pumps, and upper cylinders. Howes Diesel Defender is packed with the vital lubricity you need. By lubricating your system, destroying and preventing deposits, and safely removing water, Diesel Defender gives your vehicle unrivaled protection, power, and performance all year round. Other Features Include IDX4 Detergent cleans all types of injector deposits including Internal Diesel Injector Deposits (IDID) and prevents future depositsSafely removes waterReduces exhaust emissions and boosts engine performance and powerSafe and effective in all diesel and biodiesel fuels including home heating oilContains no alcohol or harmful solvents Other Features Include IDX4 Detergent cleans all types of injector deposits including Internal Diesel Injector Deposits (IDID) and prevents future depositsSafely removes waterReduces exhaust emissions and boosts engine performance and powerSafe and effective in all diesel and biodiesel fuels including home heating oilContains no alcohol or harmful solvents Howes Diesel Defender 15oz - Case pack (12) Howes Diesel Defender 32oz - Case pack (6) Howes Diesel Defender 64oz - Case pack (6) Add to Cart Add to Cart Add to Cart Customer Reviews 5.0 out of 5 stars 4 4.6 out of 5 stars 40 4.2 out of 5 stars 33 Price $84.98$84.98 $72.99$72.99 $112.50$112.50 Size 15 Ounce 32oz / 1 Quart 64oz / Half Gal Treat Ratio 1 oz. to 5 gal. 1 quart to 160 gal. 1/2 gal to 320 gal.