 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.
| TYPICAL TECHNICAL
PROPERTIES |
| AMSOIL
SEVERE GEAR™ Synthetic Extreme
Pressure (EP) SAE 75W-140 Lubricant |
| Kinematic
Viscosity @ 100°C, cSt (ASTM D-445) |
25.5 |
| Kinematic
Viscosity @ 40°C, cst (ASTM D-445) |
183.9 |
| Viscosity
Index |
173 |
| Brookfield
Viscosity, cP (150,000 Max) @-40°C |
120,200 |
| 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 |
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 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
todays 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
|