AMSOIL Long Life Synthetic Gear Lube SAE 80W-140 (FGO)

Specifically engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Protects against wear and improves equipment life. Excellent "All Season" summer and winter performance. Outperforms all conventional gear oils. Compatible with most limited-slip differentials.

AMSOIL Long Life Synthetic Gear Lubes are extended drain gear lubes engineered specifically to last several times longer and protect gears better than all conventional gear oils. These exclusive AMSOIL formulations of premium synthetic base oils and high performance additives resist acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lubes are shear stable and friction reducing. They maintain their viscosity during extended service for maximum wear control and they are fuel-efficient. The superior cold temperature fluidity and high temperature stability properties of AMSOIL Long Life Synthetic Gear Lubes make them excellent for all-season use. Equipment lasts longer and maintenance costs are reduced with AMSOIL Long Life Synthetic Gear Lubes.

AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics^® , to do the best job protecting your vehicle.

AMSOIL Long Life Synthetic Gear Lubes provide:

• High Load Gear and Bearing Protection
• Reduced Operating Temperatures
• Rust and Corrosion Protection
• Better Cold Weather Shifting
• Improved Efficiency
• Improved Seal Life

Applications

AMSOIL Long Life Synthetic Gear Lubes, in the correct viscosity grades, are recommended for all domestic and foreign applications such as over-the-road trucks, light, medium and heavyduty trucks, off-road equipment, commercial vehicles, motorhomes, autos, SUVs, emergency vehicles, busses, delivery/utility vehicles and tractors.

Use AMSOIL Extended Drain Synthetic Gear oils 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, Dana SHAES 256 (Formerly Eaton PS-163) for 500,000 miles, Mack GO-J & GO-J+, Meritor 0-76N (75W-90) & 0-80 (80W-140), and Navistar TMS 6816 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.

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 500,000 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.

AMSOIL Long Life Synthetic Gear Lubes are compatible with conventional gear oils, however mixing oils reduces the benefits and nullifies the extended service life recommendations.

AMSOIL Long Life Synthetic Gear Lubes are compatible with most limited slip differentials. If limited slip differential chatter occurs, add AMSOIL Slip-Lock friction modifier additive.

AMSOIL Long Life Synthetic Gear Lube 80W-140 replaces competitors' 80W-140 and 85W-140 viscosity grades

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
AMSOIL Long Life Synthetic Gear Lube SAE 80W-140 (FGO)
Viscosity @ 100°C, cSt (ASTM D-445)	26.4
Viscosity @ 40°C, cSt (ASTM D-445)	257.6
Viscosity Index (ASTM D-2270)	133
Brookfield Viscosity, cP (150,000 Max) @-26°C	59,926
Flash Point °C (°F) (COC) (ASTM D-92)	218 (424)
Pour Point °C (°F) (COC) (ASTM D-97)	-40 (-40)
Copper Corrosion (ASTM D-130) 1b Max @ 121 °C (250°F) / 3hr	1b
Falex Procedure B (ASTM D-3233) (failure load, lbf.)	2500
Foam Stability (ASTM D-892) (20/50/20 maximum)	0/0/0