Synthetic 50 WT Transmission Oil

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Synthetic 50 WT Transmission Oil

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Lucas Synthetic 50 WT Transmission Oil is designed especially for heavy duty truck transmissions but can be used in many other applications.

Common gear oils are mostly base stocks with little more than an addition of sulfur and phosphorus as a total anti-wear package. We at Lucas Oil Products consider this inadequate. Most heavy duty truck transmission manufacturers now consider sulfur and phosphorus to be potentially corrosive to copper and brass and consequently recommend against common gear oils for this reason. The other 50 WT we have tested, synthetic or otherwise, are pure base stock, we consider this also inadequate.

Lucas Synthetic 50 WT contains an exclusive additive concentrate derived from synthetic oil that ensures lower operating temperatures and better lubrication, especially to upper bearings and gears. This is a long lasting fluid that is far superior to conventional synthetic fluids and contains nothing that could be harmful.

Meets or exceeds API MT-1, Eaton Transmission Div., 164 rev 7, Mack Truck TO-A Plus, International Truck TMS 6816 and other applications requiring non-EP Lubricants.

Key Benefits

  • Long lasting fluid
  • Ensures lower operating temperatures and better lubrication
  • Contains an exclusive additive concentrate


  • #10146 - 1 Gallon (Case of 4) - 33 lbs
  • #10147 - 5 Gallon Pail (1 Pail) - 40 lbs
  • #10149 - 55 Gallon Drum (1 Drum) - 440 lbs
  • #10561 - Per Gallon Tote (1 Tote)


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

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Robert Otto uses Lucas Transmission Fix for cargo van

Dear sir,

This letter is to tell you what a wonderful product your company stands behind. All to often a Company such as yours will get customer letters relating to some sort of complaint. This is quite contrary.

We own and operate a small expedited service business in the northeast part of the country, consisting of several cargo vans. Our vans run on average, approximately 100,000 miles per vehicle, per year. From the onset of the purchase of a vehicle, we have them serviced faithfully with Lucas products in both oil additives and transmission fix. As a matter of fact, not only is your product extraordinary in extending the life of a vehicle, I am writing to tell you that we have a van with over 500,000 miles on it's odometer and it's still going strong because of your products.

Enclosed please find a picture of the van that has one half million miles on it. I can't thank you enough for supplying a product to the general market that is so superior that I wouldn't think of having any of our vehicles go without it.

You may use this letter as a true testimonial of how anyone can extend the life of a vehicle with the help of your product.

Thank you again and keep

Robert F. Otto

Laceyville, PA.

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