Transmission Fix

Transmission Fix


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Lucas Transmission Fix is a non-solvent formula that stops slip, hesitation and rough shifting in worn transmissions and completely eliminates most seal leaks. Use in any transmission for preventative maintenance. Use also in light duty manual transmissions to increase shifting ease and transmission life.

Key Benefits

  • Contains no solvents
  • Lowers operating temperatures and stops foaming
  • Can be added to existing fluid without draining any out
  • Effective in an extremely high percentage of cases


  • #10009 - 24 Ounce (Case of 12) - 19 lbs
  • #10087 - 5 Gallon Pail (1 Pail) - 40 lbs
  • #10141 - 55 Gallon Drum (1 Drum) - 440 lbs
  • #10154 - Per Gallon Tote (1 Tote)


Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet

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Product Videos - Transmission Fix

  • Lucas Transmission Fix

Shamus Hogan uses Lucas Transmission Fix

I have an old 1986 Toyota pickup in great shape...except for an annoying hard shift in first and second gear. I had done some reading on what the causes might be for this..and ended up replacing the shift lever seat and bushing thinking this would solve my problem. It did not.

So, i stopped down at my local Napa shop, and they suggested i add a bottle of your transmission fix to my existing transmission oil. I added the bottle last night and took my first drive today.

All i can say is "WOW!!!". This stuff really works!! I instantly felt a difference. I used to have to ease into first and second gear gently to find that sweet spot where the truck "wanted" to shift. Now i can shift when i want with no resistence. It's amazing to me that a bottle of your transmission fix could have such a drastic result. Now first and second feel as easy to shift as every other gear.

Thank you Lucas Oil!!! Your products are amazing!!

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