AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid | Zero-Turn Mowers
AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid is a high-zinc, purpose-built fluid for zero-turn and stand-on mowers. Resists heat and shear, maintains wheel-motor tolerances, and lasts up to 2X OEM intervals.
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AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid | Zero-Turn Mowers: Every Product in the Line
| Product | Viscosity | Details | Shop |
|---|---|---|---|
| AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid | 20W-50 | Details → | Shop at AMSOIL.com → |
High-Zinc Hydrostatic Fluid for Zero-Turn and Stand-On Mowers
AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid is specifically formulated to deliver smooth, responsive operation in zero-turn mowers, stand-on mowers and other equipment professionals rely on to make a living. It fights wear and viscosity loss during continuous, severe-service operation, maximizing mower speed and operability.
Unlike motor oils, AMSOIL Synthetic Hydrostatic Transmission Fluid is purpose-built to withstand the unique demands of hydrostatic transmissions. It lasts up to 2X original equipment manufacturer (OEM) recommendations, helping professionals save money and reduce downtime.
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Maximizes Mower Speed and Responsiveness
In many zero-turn mowers, oil pressure drives the wheel motors. Fluid that fails to protect against wear can cause the tight tolerances in the wheel motors to widen, which reduces oil pressure and erodes speed and responsiveness. Fluid that thins at high temperatures can have the same effect.
AMSOIL Synthetic Hydrostatic Transmission Fluid contains high levels of zinc-based anti-wear additives to help maintain those tight tolerances, while its synthetic base oils naturally resist viscosity loss in extreme heat.
Commercial-Grade Wear Protection
The mechanical action of meshing gear teeth can shear the molecular structure of the fluid, leading to viscosity loss, and high heat can cause the fluid to thin. AMSOIL Synthetic Hydrostatic Transmission Fluid’s naturally tough synthetic base oils resist viscosity loss due to shear and high heat, promoting the formation of a durable sacrificial anti-wear film on components that helps extend mower life.
Maintains Cleanliness
Hydrostatic transmission temperatures can exceed 230°F (110°C), causing some conventional fluids to break down and form harmful deposits. AMSOIL Synthetic Hydrostatic Transmission Fluid features naturally heat-resistant synthetic base oils, which reduce deposits and help keep equipment clean and running properly season after season.
Service Life
AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid delivers excellent protection for 2X original equipment manufacturer (OEM) recommendations.
Applications
Use in hydrostatic transmissions that require 15W-50 or 20W-50 oil recommended for API SM, SL, SJ, SH or SG, including (not limited to) those found in zero-turn, riding and stand-on mowers made by:
- SCAG, Toro, Ferris, Snapper Pro, Gravely, Ariens
- Exmark, Walker, Hustler, Wright, Dixie Chopper
- John Deere, Husqvarna, EverRide, Bad Boy, Cub Cadet
Not for use in engines.
Order AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid
Keep your crew’s mowers fast and responsive all season.
Shop Hydrostatic Transmission Fluid at AMSOIL.com Independent AMSOIL Dealer #1858536
For wholesale pricing, contact National Synthetics about the Preferred Customer program and save up to 25% on all AMSOIL products.
Frequently Asked Questions
Warranty Secure
AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid is Warranty Secure, keeping your factory warranty intact. It is a high-performance replacement for vehicle-manufacturer-branded products and is backed by the AMSOIL Limited Warranty. For complete information visit AMSOIL.com/guarantee.
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Frequently Asked Questions
What equipment is AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid for?
It is purpose-built for hydrostatic transmissions in zero-turn, riding and stand-on mowers that require 15W-50 or 20W-50 oil recommended for API SM, SL, SJ, SH or SG — including equipment from SCAG, Toro, Ferris, Snapper Pro, Gravely, Ariens, Exmark, Walker, Hustler, Wright, Dixie Chopper, John Deere, Husqvarna, EverRide, Bad Boy and Cub Cadet. It is not for use in engines.
Why use a dedicated hydrostatic fluid instead of motor oil?
Unlike motor oils, AMSOIL Synthetic Hydrostatic Transmission Fluid is purpose-built to withstand the unique demands of hydrostatic transmissions. Its high-zinc anti-wear additives maintain the tight tolerances in wheel motors and its synthetic base oils resist viscosity loss due to shear and high heat — both critical to preserving mower speed and responsiveness.
How long does it last between changes?
AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid delivers excellent protection for 2X the original equipment manufacturer (OEM) recommended service interval, helping professionals save money and reduce downtime.
Will using it affect my equipment warranty?
No. AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid is Warranty Secure, keeping your factory warranty intact. It is a high-performance replacement for vehicle-manufacturer-branded products and is backed by the AMSOIL Limited Warranty.