STANADYNE DIESEL PERFORMANCE FORMULA - 16 OZ. Stanadyne Performance Formula protects against fuel gelling; lubricates, cleans & protects entire fuel system; increases cetane (resulting in more horsepower, easier starting, and quieter running); reduces smoke; demulsifies water to improve filter/separator efficiency; keeps fuel fresher; is compatible with up to 5% bio-diesel (B5), and is alcohol free. Meets all fuel system requirements regardless of make, model or year Approved by Original Equipment Manufacturers (OEMs) Cold Weather Protection - reduces diesel pour point up to 40F (22C), and cold filter plug point by up to 25F (13C), depending on base fuelHot Weather Protection - lubricants and cetane improver help when fuel is hot and "thin" Increases Horsepower - with up to 5 point cetane gain to improve combustion, resulting in better acceleration, power and torque Reduces Fuel Consumption - independent tests show gains up to 9.6% in MPG Easier and Faster Starting - in all conditions. Reduces Smoke and Particulate Emissions - and is suitable for ultra low sulfur diesel. Cleans and Protects - detergents and deposit modifiers help protect injection pumps, injectors, nozzles, etc. Fights the formation of corrosion and rust. Contains No Alcohol - avoids corrosion and accelerated wear. Helps Remove Water - special demulsifiers cause tiny water droplets to come out of suspension/emulsion, so the filter/separator can more effectively remove water. Specially Formulated for use with ultra low sulfur diesel fuel. Can be used with Bio Diesel Fuel up to B20 (20% bio content approved ) - increased water separation shown in bio content up to B20. APPLICATIONS:For all diesel powered engines. Specifically formulated to provide peak performance in both hot and cold weather. This is a year-round product.