Product Description
AMSOIL SEVERE GEAR® Synthetic Extreme Pressure (EP)
Lubricants are premium grade gear oils specifically
engineered for maximum performance in severe duty
applications. These state-of-the-art AMSOIL formulations
feature an exclusive blend of high viscosity, shear stable
synthetic base oils and an extra treatment of
high-performance additives. AMSOIL SEVERE GEAR® Synthetic EP
Lubricants maintain their viscosity for long-lasting
protection against metal-to-metal contact. The proprietary
AMSOIL additives form an iron-sulfide barrier coating on
gear surfaces, providing the ultimate line of defense
against wear, pitting and scoring. AMSOIL SEVERE GEAR®
lubricants help prevent “thermal runaway” — a phenomenon
caused by a lubricant’s inability to control friction and
increased heat under high-stress conditions. By controlling
thermal runaway, AMSOIL SEVERE GEAR® Synthetic EP Lubricants
inhibit rapid lubricant degradation and component damage.
Equipment runs better and lasts longer with AMSOIL SEVERE
GEAR® Synthetic EP Lubricants.
Performance
AMSOIL SEVERE GEAR® provides performance beyond that
possible with conventional gear oil. These AMSOIL custom
products offer superior gear and bearing protection, better
friction and heat reduction, increased efficiency and
extended service life.
- Superior Film Strength
- Controls Thermal Runaway
- Rust and Corrosion protection
- Reduced Operating Temperatures
- Improved Efficiency
- Longer Oil, Seal, & Equipment Life
Temperature
Extremes
AMSOIL SEVERE GEAR® EP lubricants excel in hot and cold
temperature extremes. By design, they resist breakdown from
high heat, preventing acids and carbon/varnish formation.
Their waxfree construction also improves cold flow
properties, improving fuel economy and cold weather
shifting.
Applications
AMSOIL SEVERE GEAR® Synthetic EP Lubricants are excellent
for severe applications, such as towing, hauling, steep hill
driving, commercial use, plowing, racing, off-road use,
rapid acceleration, frequent stop-and-go operation and high
ambient temperatures.
Higher horsepower, towing and hauling
capabilities of modern vehicles make turbo diesel pick-ups,
SUVs, vans and delivery/utility vehicles especially prone to
severe service. Other severe duty vehicles include light,
medium and heavy-duty trucks, buses, heavy equipment, 4X4s,
tow trucks, race cars, tractors, and motorhomes.
For product service life in differentials,
consult your owner’s manual or the Original Equipment
Manufacturer (OEM) to establish the application, NORMAL or
SEVERE.
| . |
NORMAL
|
SEVERE
|
| Cars, SUV, Light & Medium Duty
Trucks |
Drain at 100,000 miles of service
or according to the owner’s manual, whichever is
longer |
Drain at 50,000 miles of service
or according to the owner’s manual, whichever is
longer |
| Heavy Duty Class 8 Line Haul |
Follow the OEM drain
interval (miles or hours) for synthetic oil up to
250,000 miles or 3 years, whichever comes first.
Otherwise, drain at twice the OEM interval for
conventional oil. |
| Heavy Duty Off-Road Vocational |
Follow the OEM drain
interval (miles or hours) for synthetic oil up to
120,000 miles or 1 year, whichever comes first.
Otherwise, drain at twice the OEM interval for
conventional oil. |
For product service life in
non-differential applications, consult owner’s manual or the
OEM for either normal or severe synthetic oil service
intervals. Where service intervals are unavailable, drain at
twice the interval for conventional oil.
Gear oils should be changed more
frequently when operating vehicles or equipment in dusty or
dirty conditions unless the gear system is properly sealed
and equipped with membrane type breathers.
Note: AMSOIL does not support extended
drain intervals where water contamination occurs. Check and
service the gear oil frequently when water contamination is
possible.
Recommended for use in differentials,
manual transmissions and other gear applications requiring
any of the following specifications: API GL-5, MT-1,
MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037), Mack
GO-J, or the differential (hypoid) gear oil specifications
from all domestic and foreign manufacturers such as GM, Ford
and Daimler Chrysler. Can also be used in axles where an API
GL-4 lubricant is recommended.
AMSOIL SEVERE GEAR® (75W-140)
provides superior performance and replaces competitors’
75W-140, 80W- 140 and 85W-140 gear oils. Use where these
viscosities are required by OEMs and where maximum viscosity
protection is needed for extreme severe-duty applications.
AMSOIL SEVERE GEAR® is compatible with
conventional and synthetic gear oils. Mixing AMSOIL gear
oils with other oils, however, will shorten the oil life
expectancy and reduce the performance benefits. AMSOIL does
not support extended drain intervals where oils have been
mixed. Aftermarket oil additives, other than those specified
by AMSOIL, are not recommended for use with AMSOIL gear
oils.
AMSOIL SEVERE GEAR® is compatible with
most limited slip differentials. If limited slip
differential chatter occurs, add
AMSOIL Slip-Lock™ friction
modifier additive.
HEALTH & SAFETY
This product is not expected to cause health concerns when
used for the intended application and according to the
recommendations in the Material Safety Data Sheet (MSDS). An
MSDS is available upon request at 715-392-7101 or
on the AMSOIL website. Keep
Out of Reach of Children. Don’t pollute. Return used oil to
collection centers.
|
TYPICAL TECHNICAL
PROPERTIES
revised as of 2/06
|
|
AMSOIL SEVERE GEAR®
Synthetic Extreme Pressure (EP) SAE 75W-140
Lubricant
|
| Kinematic Viscosity @
100°C, cSt (ASTM D-445) |
25.7
|
| Kinematic Viscosity @
40°C, cst (ASTM D-445) |
185.6
|
| Viscosity Index (ASTM
D-2270) |
173
|
| Brookfield Viscosity,
cP (150,000 Max) @-40°C |
124,210
|
| Flash Point, °C (°F)
(ASTM D-92) 150°C Min. |
210 (410)
|
| Pour Point, °C (°F)
(ASTM D-97) |
-48 (-54)
|
| Copper Corrosion
(ASTM D-130) 1b Max @ 121 °C (250°F) / 3hr |
1b
|
| Falex Procedure B
(ASTM D-3233) (failure load, lbf.) |
1500
|
| Foam Stability (ASTM
D-892) (20/50/20 maximum) |
0/0/0
|
|