"The First in Synthetics" ® 

							
					
						


							L-O-N-G  L i f e 

								
							SYNTHETIC 

							75w-90 Gear Lube

							

							

							
				

			

			

			

				

					
						
PRODUCT DESCRIPTION

							

						
Product Code: FGR 

						
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.

						

						

							
					
				

			

			

				

					
						
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..

						
AMSOIL Long Life Synthetic Gear Lubes provide:

								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.

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

							
				

			

			

				

					
						

							TYPICAL 
                        TECHNICAL PROPERTIES 

							
				

				

					
						

							AMSOIL 
                        Long Life Synthetic Gear Lube 75W-90

							
				

				

					Kinematic 
                      Viscosity @ 100°C, cSt (ASTM D-445) 
					
						

							16.0

							
				

				

					Kinematic 
                      Viscosity @ 40°C, cst (ASTM D-445) 
					
						

							129.0

							
				

				

					Viscosity 
                      Index
					
						

							132

							
				

				

					Brookfield 
                      Viscosity, cP (150,000 Max)
					
						

							90,481 
                        @ -40°C

							
				

				

					Flash 
                      Point, °C (°F) (ASTM D-92) 150°C Min.
					
						

							217 
                        (423)

							
				

				

					Pour 
                      Point, °C (°F) (ASTM D-97)
					
						

							-51(-67)

							
				

				

					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

							
				

			

			

			

				

					
						
Service Life in Differentials

								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. 

						
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 75W-90 replaces competitors' 75W-90 and 80W-90 viscosity grades.

							
				

			

			

			

				

					
						

							
				

			

			

				

					
						
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

							
				

			

			

				

					
						

							

							

								

									
										

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