My car has roughly 190,000 miles on the odometer. For the past 50,000 miles my transmission has been having some serious trouble with jerky shifting from 1st to 2nd, slipping and losing horsepower in 3rd gear (won't exceed 2500 Rpm's without flooring it ), and overall just lacking power in all ways. I decided to throw in some Lucas Transmission Fix skeptical it would make any noticeable difference considering the mileage on the car/tranny. I CAN'T BELIEVE IT! My car runs like almost new again! It jumps off the line, holds horsepower great, and no more slipping! The car hasn't run like this in years.... Thanks a ton, you've got a lifetime customer/believer in your products now!!