Hydrostatic Transmission Fluid Synthetic Blend SAE 20W-50

Especcially formulated to withstand the unique demands of hydrostatic transmissions in zero-turn, stand-on or ride-on mowers.

Hydrostatic drive is what makes this possible; the ability to apply variable torque to the left or right wheel. These systems require a versatile and robust hydraulic system and thus, an equally robust hydrostatic drive fluid. Lucas Oil has just the product for these mowers. This SAE 20W-50 multi-grade viscosity oil provides excellent protection against all lubricated parts, has added detergency, dispersancy and rust protection over motor oils, that are sometimes used in this application, and will not shear thin over time.

Additionally, Lucas Synthetic Blend Hydrostatic Drive Fluid contains a seal conditioner to discourage leaks, so the fluid stays in the mower, not on the grass. Together, these attributes result in a long-life fluid that truly holds up over time and extends equipment life. Recommended for all hydrostatic drive systems where the manufacturer recommends SAE 20W-50 fluid. Not recommended for engine crankcase.

Key Benefits

  • Premium Anti-Wear Protection
  • Corrosion Protection
  • Resists Oxidation
  • Added Dispersancy and Detergency for Clean Internal Parts
  • Made with Synthetic and Premium Base Oil
  • Improves Equipment Life and Reliability


  • #11300 - 1 Quart (Case of 6) - 13 lbs


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

Daryl from Daytona is pleased with Lucas Synthetic Oils since his R1 runs cooler, quieter, and shifts smoother than ever

To whom it may concern,

My name is Daryl Domago, I am the design center manager at Bruce Rossmeyers Harley Davidson in Daytona beach. I have now used Lucas synthetic for three consecutive oil changes in my 2000 R1. I have had great success with this product and will continue to use it for a very long time. The bike has 70000 miles on it and runs cooler, quieter, and shifts smoother than ever. I am very pleased with this product.  I have had such success with it. I have used a dozen different oils trying to find something I can trust and rely on in the blistering temperatures that I face with in town driving in Daytona. Thank you Lucas for giving me confidence in your product, Keep up the good work! I will continue to pass the word!


Daryl \The Dragon\ Domago

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