AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission FluidThis professional-grade hydrostatic transmission oil is formulated to outperform 20W-50 engine oils in zero-turn hydrostatic transmissions. Designed to stay in service for double the manufacturer’s oil change interval. A cost-effective way to protect your investment and optimize performance.

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid package sizes include:
1-Quart Bottle (or buy case of 12)
1-US Gallon Jug (or buy case of 4)
5-US Gallon Pail
55-Gallon Drums


Oil Depot can offer wholesale programs so that you can buy AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid at the best prices in Canada or the United States. Request a synthetic oil price list using the contact form on this page.

Why Is AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid Better Than Motor Oil?

Motor oils contain detergents and additives that are designed to contend with combustion. As there is no combustion in a hydrostatic transmission, these ingredients are not only needless, they can cause problems over time. As engine oil detergents wear out, they can contribute to foaming in hydrostatic transmissions which can lead to compromised protection.

Suitable Applications For AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid

Not for use in engines. This product is designed for hydrostatic transmissions in zero-turn, stand-on and self-propelled lawn mowers requiring a 15W-50 or 20W-50 oil.

Covers the API SM, SL, SJ, SH, SG industry specifications. Suitable for hydrostatic transmissions in the following mower brands.

  • Ariens
  • Bad Boy
  • Cub Cadet
  • Dixie Chopper
  • EverRide
  • Exmark
  • EverRide
  • Ferris
  • Gravely
  • Husqvarna
  • Hustler
  • John Deere
  • SCAG
  • Snapper Pro
  • Toro
  • Walker
  • Wright

Features And Benefits of AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid

  • Resists extreme heat
  • Outstanding anti-wear properties for long component life
  • Prevents oxidation
  • Provides powerful anti-foaming resistance
  • Fights deposit formation
  • Offers consistent and smooth transmission and steering performance
  • Overbuilt for long oil change intervals
  • Also suitable for cold weather service (pours down to -35°F)

Wear Protection For Hydrostatic Transmissions

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid provides world-class protection against metal-to-metal wear. It is also resists shear-down and thinning, so transmission components receive steady protection. The result is consistent performance over the long-term and protection against downtime and expensive repairs.

Strong Resistance To Deposits

Lesser oils will shear down, oxidize and boil-off in the extreme heat generated by hard working hydrostatic transmissions. This leads to deposits and varnish which can compromise performance. AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid’s high-quality base oil and ingredients are formulated to withstand extreme operating temperatures. Zero-turn transmissions can run at temperatures beyond 110°C (230°F).

Mixing AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid With Other Brands

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid is compatible with all other brands of conventional, semi-synthetic and synthetic oil. While you can safely mix AMSOIL Synthetic Oil with other brands, this will reduce the drain interval and performance capabilities of AMSOIL Hydrostatic Transmission Oil.

The use of any aftermarket oil additives is definitely NOT recommended.

Service Life of AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid should be changed at the two times the interval as prescribed by the owner’s manual or mower manufacturer.

Specifications

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid (AHF)

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)

19.5

Kinematic Viscosity @ 40°C, cSt (ASTM D-445)

162.9

Viscosity Index (ASTM D-2270)

137

Pour Point °C (°F) (ASTM D-97)

-39 (-38)

Flash Point °C (°F) (ASTM D-92)

260 (500)

Fire Point °C (°F) (ASTM D-92)

270 (518)

CCS Viscosity, cP @ -15 °C (ASTM D-5293)

6895

Four Ball Wear Test
(ASTM D-4172B: 40 kg, 75°C, 1200 rpm, 1 hour), Scar, mm

0.35

AMSOIL 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid
Synthetic 20W-50 transmission oil for zero-turn lawn mowers by Cub Cadet, Gravely, Hustler, John Deere, Walker and more.
Brand: AMSOIL
Manufacturer: AMSOIL
Model: 20W-50 Synthetic Zero-Turn Hydrostatic Transmission Fluid
Product ID: AHF