AMSOIL Synthetic Multi-Viscosity Hydraulic Oil's blend of high-viscosity-index
base oils and performance additives provides all-season protection
and reliable operation in all types of hydraulic systems. Its proven
wear resistance and varnish-control deliver maximum hydraulic system
performance and life. Synthetic Multi-Viscosity Hydraulic Oil is additionally
tailored to promote energy efficiency and foam suppression.
All-Season Performance
Multi-Viscosity Hydraulic Oil is designed for all-season use. Each viscosity covers a
broad operating temperature range, helping eliminate seasonal oil changes. Its low
pour point ensures the oil flows more readily in cold temperatures than petroleum
oils. Bearings and other components receive almost immediate lubrication at start up,
reducing long-term wear and instances of pressure spikes and erratic operation as
a result of poor fluidity. At high operating temperatures, Multi-Viscosity Hydraulic Oil
resists thermal breakdown and maintains its protective viscosity, allowing formation of
a strong lubricating film.
Varnish-Control Technology
Increased heat can cause varnish to form on metal surfaces, including valves, pumps
and bearings. Its soft, sticky composition ultimately hardens into a harmful veneer that
can reduce fluid flow, plug filters, stick valves and increase friction. Synthetic Multi-Viscosity
Hydraulic Oil is fortified with anti-varnish additives that chemically react with the
building blocks of varnish, inhibiting its formation. It helps hydraulic systems remain
clean and long-lasting.
- Increases convenience
and reduces costs due to
all-season performance
- Formulated to reduce
maintenance costs with
anti-wear and anti-varnish
chemistry
- Promotes maximum fluid
life by resisting viscosity
loss and chemical
breakdown
- Designed to increase
system performance and
responsiveness through
foam suppression and
fast air-release properties
- Helps reduce energy
costs due to high-viscosity-index, energy-efficient
formulation

Anti-Wear Chemistry
Synthetic Multi-Viscosity Hydraulic Oil features a shear-stable
formulation fortified 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 standardized
laboratory and pump manufacturer tests (see below). Synthetic
Multi-Viscosity Hydraulic Oil demonstrates excellent protection for
pumps, motors, valves and other components against wear.

APPLICATIONS & SPECIFICATIONS
The correct viscosity grade of AMSOIL Synthetic Multi-Viscosity
Hydraulic Oil is recommended for high- and low-pressure
gear, vane and piston stationary and mobile hydraulic systems,
including those with bronze metallurgy. It is recommended for
all types of applications requiring the following industry and
equipment specifications:
| Stock Code | HVG | HVH | HJI | HVJ |
| Parker Hannifin (Denison) HF-0, HF-1, HF-2 | | X | X | X |
| Vickers I-286-S, M-2950-S | | X | X | X |
| DIN 51524 Parts 2 & 3 | | X | X | X |
| Cincinnati Milacron P-68 | | X | | |
| Cincinnati Milacron P-70 | | | X | |
| Cincinnati Milacron P-69 | | | | X |
Typical
Technical Properties |
Synthetic HV Hydraulic Oil | HVG ISO 22 | HVH ISO 32 | HVI ISO 46 | HVJ ISO 68 |
ISO VG (ASTM D 2422) | 22 | 32 | 46 | 68 |
Kinematic Viscosity @100°C cSt (ASTM D 445) | 5.2 | 6.5 | 8.5 | 11.2 |
Kinematic Viscosity @40°C cSt (ASTM D 445) | 23.6 | 31.8 | 46.7 | 68.5 |
Viscosity Index (ASTM D 2270) | 161 | 165 | 161 | 155 |
Flash Point °C (°F) (ASTM D 92) | 228 (442) | 224 (435) | 246 (475) | 252 (486) |
Fire Point °C (°F) (ASTM D 92) | 242 (468) | 246 (475) | 266 (511) | 270 (518) |
Pour Point °C (°F) (ASTM D 97) | -49 (-56) | -46 (-51) | -44 (-47) | -41 (-42) |
Four-Ball Wear Test
(ASTM D 4172B) (40 kg, 1200 rpm, 75° C, 60 min.) | 0.42 | 0.42 | 0.41 | 0.41 |
Copper Strip Corrosion Test 100°C, 3 hrs. (ASTM D 130) | 1A | 1A | 1A | 1A |
Foam (ASTM D 892, Sequence I, II & III) | 0/0, 10/0, 0/0 | 0/0, 10/0, 0/0 | 0/0, 10/0, 0/0 | 0/0, 35/0, 0/0 |
Demulsibility (ASTM D 1401) | 40-40-0 (20) | 40-40-0 (25) | 40-40-0 (20) | 40-40-0 (20) |
| Dielectric Strength, Voltage, kV AC (ASTM D 877) | 47 | 45 | 44 | 45 |
Seal Tests Elastomer SRE-NBR 1, 100°C, 168 hrs. (ASTM D 471) | Pass | Pass | Pass | Pass |
Rust Testing
Distilled and Salt Water (ASTM D 665A & B) | Pass | Pass | Pass | Pass |
KRL Shear Test, 15% Max KV loss, Stay-in-Grade | Pass | Pass | Pass | Pass |