Renews Worn Transmission Fluid, cleans and lubricates sticking valves for proper shifting. For extended transmission life and heat control, add one bottle of Transmission Fix with each fluid change (approximately 30,000 miles; please refer to owner’s manual). Add to existing transmission fluid with engine warm and idling or with fluid change. A second bottle may be necessary in larger or badly worn transmissions. For smaller transmissions (compact or sub-compact vehicles) use 12oz. Results are usually immediate.
Lucas Transmission Fix will be ineffective if the transmission has broken internal parts or the bands/clutch packs are completely burned out.