XL Nanolube Engine Optimizer is revolutionary and significant scientific break-through for all Diesel and Gasoline Engines. It is formulated to optimize your engine by cleaning internal moving parts, stabilizing the engine temp, sealing the micro pores in the piston wall and improving engine torque and horsepower. It improves Miles per Gallon and Engine Performance and Reduces Emission. XL Engine Optimizer also improves cleans, restores, and extends Engine Life and it permanently Eliminates the Dry Start. For more detailed information about XL Nanolube Engine Optimizer, please visit XL Nanolube home page.