Review on Enhance Performance with Prolong Super Lubricants PSL15000 Transmission Treatment - 8 oz. by Jeff Aulia

Great Deal! If you have a high mileage gearbox and it is already worn out. I would not recommend it. But I have always used extended life products in my cars immediately after purchase. And immediately switched all fluids to fully synthetic with an admixture of Prolong. At the time of the oil change in my 40,000 to 60,000 used vehicles, the transmissions of all my vehicles have averaged over 200,000 miles. Keep in mind that I have experience with fairly new gearing combined with full synthetic drains and refills. Bigger, but worth the effort. If a shop or dealer says your transmission is rated for 7-8 liters. This is not a full trance service. Middle gear includes a torque converter of only 13 to 15 quarts. I have 14 liters on my truck.