Triax Trans-Zero 20W-50 Full-Synthetic Hydrostatic Transmission Oil 1 Gallon — High Zinc Anti-Wear, -50°F Pour Point

Triax Trans-Zero 20W-50 is a full-synthetic hydrostatic transmission and drivetrain oil formulated to deliver year-round protection, long life, and reliable performance in zero-turn, riding, and stand-on lawn mowers.

Engineered for commercial and residential mower fleets, this one-gallon Trans-Zero formulation replaces OEM hydrostatic fluids that call for 20W-50 or higher viscosity grades. It combines high zinc anti-wear chemistry, exceptional oxidation resistance, and a -50°F pour point to keep transmissions responsive from cold mornings to hot afternoons while minimizing deposits and shear-related thinning.

How does Trans-Zero protect hydrostatic transmissions under heavy loads?

Trans-Zero uses elevated zinc anti-wear additives and high film strength to prevent metal-to-metal contact during heavy towing, tall grass cutting, and steep grade operation. That chemistry reduces scuffing and glazing so pumps and motors keep delivering intended speed and torque.

• High-zinc anti-wear package reduces gear wear and scoring
• Strong film strength prevents boundary lubrication breakdown under load
• Resists shear to maintain consistent viscosity during strenuous use

Will this fluid work with my mixed fleet of mower brands?

Yes — Trans-Zero is formulated as a direct OEM replacement for hydrostatic transmission and drivetrain oils that require a 20W-50 grade or higher. It simplifies servicing across multiple manufacturers so you can stock one fluid instead of many.

• Compatible with leading brands like John Deere, Toro, Exmark, Husqvarna, Cub Cadet, and more
• Meets or exceeds the viscosity requirements of typical OEM hydrostatic specs
• Eliminates guesswork when servicing mixed equipment fleets

How does Trans-Zero perform in extreme temperatures and storage?

Developed for all-season use, Trans-Zero flows at very low temperatures thanks to a -50°F pour point and maintains film strength at high heat to avoid thinning-related failures. Superior oxidation resistance reduces varnish and sludge formation during long storage or prolonged high-load operation.

• -50°F pour point for reliable cold-start pump priming
• Improved high-temperature stability to reduce viscosity loss
• Enhanced oxidation inhibitors cut down on deposits during storage

How does this oil extend service intervals and lower maintenance cost?

Trans-Zero's robust additive package slows oxidation and corrosion and resists shear, which preserves lubricant properties longer than many OEM oils. That means fewer fluid changes, reduced parts wear, and lower downtime for commercial and high-hour residential users.

• Extended service life up to three times longer than many OEM fluids under similar conditions
• Corrosion inhibitors protect metal surfaces during idle periods and storage
• Reduced deposit formation simplifies filter and component maintenance

Who is this for? Triax Trans-Zero 20W-50 is designed for landscapers, lawn-care fleets, rental operators, and homeowners with high-performance zero-turn, stand-on, or riding mowers who need a single, dependable hydrostatic transmission oil year-round. It’s especially useful for mixed-brand fleets and equipment that face wide temperature swings, frequent heavy-load cycles, or extended storage intervals. Choose Trans-Zero when you want a full-synthetic, high-zinc solution that prioritizes wear protection, stability, and longer service life without swapping fluids between machines.