Recommendations
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.
Note: AMSOIL does not support extended drain intervals where water
contamination occurs. Check and service the gear oil frequently when
water contamination is possible.
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 SYNTHETIC 80W-90 GEAR LUBE
is compatible with synthetic and conventional gear oils, however
mixing oils reduces the benefits and nullifies the extended service
life recommendations.
AMSOIL 80W-90 SYNTHETIC GEAR LUBE
is compatible with most limited slip differentials. If limited slip
differential chatter occurs, add AMSOIL Slip-Lock friction modifier
additive.
To see a larger image click on it
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), 75W-110 (SVT) 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 |