 AMSOIL
Severe Gear Synthetic Extreme Pressure (EP) Lubricants are
premium grade lubricants 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
prevent "thermal runaway" - a phenomenon caused by a lubricant's
inability to control friction and increased heat under
high-stress conditions. By preventing 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.
Use in differentials, manual transmissions or
other gear applications where one or more of the following
standards are specified: API GL-5 & MT-1, MIL-PRF-2105E, Dana
SHAES 234 (Formerly Eaton PS-037) for 250,000 miles, Mack GO-J,
Arvin/Meritor 0-76N (75W-90) & 0-76M (75W-140), plus hypoid gear
oil specifications from all foreign and domestic manufacturers
such as GM, Ford and Daimler Chrysler. Can also be used in rear
axles where API Service GL-4 lubricant is recommended.
Product Code: SVO
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.
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, busses, heavy equipment, 4X4s, tow trucks, race cars,
tractors, and motorhomes.
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TYPICAL TECHNICAL
PROPERTIES
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AMSOIL SEVERE GEAR™ Synthetic Extreme Pressure
(EP) SAE 75W-140 Lubricant
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Kinematic Viscosity @ 100°C, cSt (ASTM D-445) |
25.5
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Kinematic Viscosity @ 40°C, cst (ASTM D-445)
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183.9
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Viscosity Index |
173
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Brookfield Viscosity, cP (150,000 Max) @-40°C |
120, 200
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Flash
Point, °C (°F) (ASTM D-92) 150°C Min. |
210 (410)
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Pour
Point, °C (°F) (ASTM D-97) |
-48(-54)
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Copper Corrosion (ASTM D-130) 1b Max @ 121 °C (250°F) /
3hr |
1b
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Falex
Procedure B (ASTM D-3233) (failure load, lbf.) |
1500
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Foam
Stability (ASTM D-892) (20/50/20 maximum) |
0/0/0
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For product service life in differentials,
consult your owner's manual or the Original Equipment
Manufacturer (OEM) to establish the application, NORMAL or
SEVERE.
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NORMAL
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SEVERE
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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 Truck, Commercial Equipment |
Follow the OEM drain interval (miles or hours) for
synthetic oil up to 250,000 miles. Otherwise, drain at
twice the OEM interval for conventional oil. |
Follow the OEM drain interval (miles or hours) for
synthetic oil. 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.
AMSOIL SEVERE GEAR™ (75W-140) replaces
competitors' 75W-140, 80W-140 and 85W-140 viscosity grades.
AMSOIL SEVERE GEAR™
is compatible with conventional gear oils, however mixing
oils reduces the benefits and nullifies the extended service
life recommendations.
AMSOIL SEVERE GEAR™ is compatible with
most limited slip differentials. If limited slip differential
chatter occurs, add AMSOIL Slip-Lock™ friction modifier
additive.
Note:
AMSOIL does not support extended drain intervals where water
contamination occurs. Check and service the gear oil frequently
when water contamination is possible.
AMSOIL has optimized gear lube
performance for specific operating conditions. However, AMSOIL
gear lubes are multi-functional and may be used in many
different applications. This chart conveys the best AMSOIL
recommendation based on product design and operating
environment.
First row product recommendations
offer superior performance in the respective applications.
Second row product recommendations offer excellent performance
in the respective applications. The third row is exclusive to
SAE 80W-90 viscosity.
AMSOIL Severe Gear™ 75W-90 (SVG)
and 75W-140 (SVO) synthetic gear lubes have a performance
emphasis on the extreme pressure and high heat of today’s
vehicle differentials.
AMSOIL Long Life 75W-90 (FGR) and
80W-140 (FGO) synthetic gear lubes have a performance emphasis
on 500,000 mile extended drain intervals associated with larger
sumps and lower operating temperatures of over-the-road truck
differentials.
AMSOIL 75W-90 synthetic gear
lubes will outperform conventional 80W-90 gear oils in all
applications and may be used as a replacement.AMSOIL offers
80W-90 (AGL) synthetic gear lube for those customers requiring
this specific viscosity grade.
* Abbreviated Version |
