| Product Code | Package Size | Unit of Measure |
|---|---|---|
| HVG05-EA | 5 Gallon Pail | Each |
| HVG55-EA | 55 Gallon Drum | Each |
| HVG27-EA | 275 Gallon Tote | Each |
AMSOIL ISO 22 100% Synthetic Multi-Viscosity Hydraulic Oil delivers varnish-free cleanliness, wide-temperature protection, and long fluid life for hydraulic systems that need to perform reliably in all seasons. It is a direct upgrade over conventional ISO 22 hydraulic fluids in excavators, wood splitters, skid steers, aerial lifts, snowplows, and shop equipment like air compressors and CNC machines.
Hydraulic systems are punishing environments. Heat generated during continuous operation breaks down conventional fluids, producing varnish and sludge that stick valves, clog filters, and degrade system response. Cold startups compound the problem: wax-laden conventional oils thicken dramatically, starving pumps of lubrication and creating dangerous pressure spikes. The result is accelerated component wear, unplanned downtime, and expensive fluid changes. A synthetic hydraulic oil formulated to handle both extremes eliminates these trade-offs.
CONTROLS VARNISH AND KEEPS SYSTEMS CLEAN
Varnish is the quiet killer of hydraulic systems. It coats servo valves, fouls filters, and gradually chokes system performance until something fails. AMSOIL Synthetic Multi-Viscosity Hydraulic Oil is fortified with anti-varnish additives that chemically react with the precursors of varnish, inhibiting its formation before it starts. In aluminum beaker oxidation testing, this ISO 22 formulation resisted elevated heat and oxidation more effectively than a leading conventional ISO 22 hydraulic fluid. Cleaner internals mean consistent valve response, fewer filter changes, and extended fluid service life.
ALL-SEASON PERFORMANCE FROM EXTREME COLD TO HIGH HEAT
The synthetic base oils in this formulation resist thermal breakdown under sustained high temperatures, maintaining protective viscosity where conventional oils thin out and lose their lubricating film. At the other end of the spectrum, the pour point of -49°C (-56°F) per ASTM D97 means the fluid flows readily in frigid conditions. Because it does not contain the waxes inherent to conventional hydraulic fluids, pumps, bearings, and valves receive almost immediate lubrication at cold startup. This reduces pressure spikes and erratic cylinder operation that plague conventional fluids in winter, and it shortens warm-up times so equipment reaches full productivity faster. For operators running skid steers, snowplows, log splitters, or compact excavators through northern winters and hot summers, a single ISO 22 synthetic hydraulic oil replaces seasonal fluid swaps.
PROVEN WEAR PROTECTION FOR PUMPS AND YELLOW METALS
The formulation uses a shear-stable viscosity modifier paired with the latest zinc-type anti-wear additives. It meets the stringent viscosity-retention requirements of Parker Hannifin (Denison) HF-0 and demonstrates excellent anti-wear performance and compatibility with yellow metals in both standardized laboratory and pump manufacturer tests. After 608 hours of strenuous pump testing in a Parker Hannifin (Denison) T6H20C Hybrid pump, piston shoes showed only moderate polishing and trace, random scratches. The vane pump cam ring exhibited only light polishing and trace scratching. Four-Ball Wear Test results (ASTM D4172) recorded a scar diameter of just 0.42 mm under 40 kg load at 1200 rpm and 75°C for 60 minutes. Copper Strip Corrosion testing (ASTM D130) at 100°C for 3 hours returned a 1A rating, the best possible result. These numbers confirm the oil protects both ferrous and bronze metallurgy found in high- and low-pressure gear, vane, and piston hydraulic systems.
RESISTS FOAM AND SEPARATES WATER
Foam in a hydraulic system reduces the effective bulk modulus of the fluid, causing spongy operation and cavitation damage at the pump. AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil demonstrated 0/0 foam tendency and stability across ASTM D892 Sequence I and III testing, and only 10/0 in Sequence II. Demulsibility testing (ASTM D1401) showed complete 40-40-0 water separation in just 20 minutes. Rapid water separation prevents emulsions from circulating through the system and promoting rust or microbial growth in the reservoir.
MAXIMIZES ENERGY EFFICIENCY
A multi-viscosity synthetic hydraulic oil with a viscosity index of 161 (ASTM D2270) maintains a more consistent viscosity across operating temperatures than a conventional mono-grade fluid. The system does not have to work as hard to push an overly thick fluid at startup, and the oil does not thin excessively at peak operating temperature. This translates to more consistent power transfer, reduced internal leakage, and lower energy consumption across the duty cycle.
Specifications and Compatibility
AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil is suitable for high- and low-pressure gear, vane, and piston stationary and mobile hydraulic systems, including those with bronze metallurgy. It meets or is compatible with the following specifications:
Use the correct viscosity grade recommended by the equipment manufacturer. AMSOIL Synthetic Multi-Viscosity Hydraulic Oil is also available in ISO 32 (HVH), ISO 46 (HVI), and ISO 68 (HVJ) grades.
Service Life
AMSOIL Synthetic Multi-Viscosity Hydraulic Oil promotes maximum fluid life thanks to its oxidation resistance and varnish-control chemistry. Drain intervals should be determined through oil analysis or by following the equipment manufacturer's recommendations, accounting for operating severity, contamination exposure, and system filtration quality.
| Property | ISO 22 (HVG) | Test Method |
|---|---|---|
| ISO VG | 22 | ASTM D2422 |
| Kinematic Viscosity @ 100°C, cSt | 5.2 | ASTM D445 |
| Kinematic Viscosity @ 40°C, cSt | 23.6 | ASTM D445 |
| Viscosity Index | 161 | ASTM D2270 |
| Flash Point, °C (°F) | 228 (442) | ASTM D92 |
| Fire Point, °C (°F) | 242 (468) | ASTM D92 |
| Pour Point, °C (°F) | -49 (-56) | ASTM D97 |
| Four-Ball Wear Test (40 kg, 1200 rpm, 75°C, 60 min.), mm | 0.42 | ASTM D4172 |
| Copper Strip Corrosion (100°C, 3 hrs.) | 1A | ASTM D130 |
| Foam, Seq. I / II / III (tendency/stability) | 0/0, 10/0, 0/0 | ASTM D892 |
| Demulsibility (minutes) | 40-40-0 (20) | ASTM D1401 |
| Dielectric Strength, kV AC | 47 | ASTM D877 |
| Seal Tests, Elastomer SRE-NBR 1 (100°C, 168 hrs.) | Pass | ASTM D4711 |
| Rust Test, Distilled and Salt Water | Pass | ASTM D665A & B |
| KRL Shear Test, 15% Max KV loss, Stay-in-Grade | Pass | — |
What equipment and applications is AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil designed for?
AMSOIL ISO 22 100% Synthetic Multi-Viscosity Hydraulic Oil (HVG05-EA) is designed for a wide range of hydraulic applications across auto/light truck, motorcycle, ATV, UTV, snowmobile, marine outboard, PWC, heavy-duty on-road, heavy-duty off-road, agriculture, and powersports equipment. Verified users have successfully used it in excavators like the Yanmar VIO 40-5, wood splitters, air compressors, and other hydraulic-powered equipment. It is formulated to protect pumps, motors, valves, servos, and other hydraulic system components.
How does AMSOIL ISO 22 Synthetic Hydraulic Oil keep hydraulic systems clean and prevent varnish buildup?
AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil is fortified with anti-varnish additives that chemically react with the building blocks of varnish, inhibiting its formation before it can cause problems. This helps hydraulic systems remain clean for solid performance, immediate response, and fewer breakdowns. By maintaining cleanliness and reducing contaminants, it also promotes long fluid life and reduced maintenance costs.
What specifications does AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil meet?
AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil meets the stringent viscosity-retention requirements of Parker Hannifin (Denison) HF-0. It demonstrates excellent anti-wear performance and compatibility with yellow metals in standardized laboratory and pump manufacturer tests. After 608 hours of strenuous pump testing in a Parker Hannifin (Denison) T6H20C Hybrid pump, the piston shoes showed only moderate polishing and trace, random scratches, and the vane pump cam ring exhibited only light polishing and trace scratching, confirming its excellent wear protection.
How does AMSOIL ISO 22 Synthetic Hydraulic Oil compare to conventional hydraulic fluids in extreme temperatures?
Unlike conventional hydraulic fluids that can thicken in cold weather or break down in extreme heat, AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil delivers all-season performance. In extreme heat, it resists thermal breakdown and maintains its protective viscosity for excellent wear protection. In cold weather, its excellent fluidity reduces pressure spikes and erratic operation, while also providing shorter warm-up times for increased productivity. Its shear-stable formulation maintains viscosity throughout its service life, unlike conventional fluids that can shear down and lose protection.
What sizes are available for AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil and how is it packaged?
AMSOIL ISO 22 100% Synthetic Multi-Viscosity Hydraulic Oil is available in three package sizes: a 5 Gallon Pail, a 55 Gallon Drum, and a 275 Gallon Tote. These bulk packaging options are designed to serve a range of hydraulic equipment needs, from smaller individual machines to large fleet or industrial operations. AMSOIL Preferred Customers receive discounted pricing with savings of up to $60.30 off the retail price.
Is AMSOIL ISO 22 Synthetic Hydraulic Oil safe for yellow metal components in hydraulic systems?
Yes, AMSOIL ISO 22 Synthetic Multi-Viscosity Hydraulic Oil demonstrates excellent compatibility with yellow metals such as brass and bronze commonly found in hydraulic pumps, valves, and fittings. This was confirmed through 608 hours of strenuous pump testing in a Parker Hannifin (Denison) T6H20C Hybrid pump, where piston shoes showed only moderate polishing and trace scratches. The oil is fortified with the latest zinc-type anti-wear additives that provide excellent wear protection while remaining safe for these sensitive metal components.
Product Details PDF - AMSOIL ISO 22 100% SYNTHETIC MULTI-VISCOSITY HYDRAULIC OIL
