Dura Lube Engine Treatment immediately helps your engine run cooler and quieter by reducing heat and friction a major cause of engine sludge Dura Lube offers four times more wear protection than your lubricants alone and contains no solid particles like PTFE, lead, molybdenum, or graphite Can be used in gas and diesel engines, and is compatible with synthetic and non-synthetic oils. Replace one quart of motor oil with Dura Lube Advanced Engine Treatment at every oil change Use on Higher Mileage Vehicles or add the additional protection on newer engines, Dura Lube helps all engines last longer, run quieter, and optimize fuel economy. Compatible with all gasoline and diesel engines including Chevy, GMC, Ford, Honda, BMW, Audi, Lexus, Toyota, Kia, Acura, and more Works in 10W-30, 5W-30, 5W-20, 0W-20, and most common viscosity grades for automotive including mono-grade oils Great for compact cars, sedans, SUVs, vans, light pickup trucks, heavy-duty vehicles Vehicle Fitment Type: Universal