Prolong Super Lubricants Engine Treatment is designed to protect gas and diesel engines from friction and heat, the company says. Engine Treatment is formulated with Prolong’s Anti-Friction Metal Treatment to help prevent metal-on-metal grinding. The engine treatment is poured directly into 4- to 5-quart engine crankcases and is recommended for use as part of or in between oil changes. For more protection, Prolong offers an 8 oz. Engine Treatment Booster that can be used during each oil change. Prolong products do not alter the viscosity of the motor oil or transmission fluid, the company says.
Prolong Super Lubricants