Severe Gear® 75W-90 GL-5 EP Differential Fluid

Severe Gear 75W90 Gear Lube GL5

Severe Gear 75W-90 Our #1 Draw from new customers. 140 products and this is the one! Best differential lube on the planet!

SKU: SVG Category:

Severe Gear 75W-90 – GL-5

Designed to protect axles when pushed beyond design limits.

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AMSOIL Severe Gear® Synthetic 75W-90 Extreme Pressure (EP) Gear Lube is a premium-grade gear oil specifically engineered for maximum performance in severe-duty applications. This state-of-the-art AMSOIL formulation features an exclusive blend of high-viscosity, shear-stable synthetic base oils and an extra treatment of high-performance additives. AMSOIL Severe Gear Synthetic EP Gear Lube maintains its 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 helps prevent “thermal runaway” — a phenomenon caused by a lubricant’s inability to control friction and increased heat under high-stress conditions. By controlling thermal runaway, AMSOIL Severe Gear Synthetic EP Gear Lube inhibits rapid lubricant degradation and component damage. Equipment runs better and lasts longer with AMSOIL Severe Gear Synthetic EP Gear Lube.

Use for any 75W-90, 80W-90 and 85W-90.

“Another top seller of ours. AMSOIL once said it’s among the most advanced products they ever made. Had one customer quote five more MPH available in his RV on a steep mountain road. Severe Gear is a must in differentials which take a lot of abuse. Reports of temperatures dropped as much as 50 degrees.” The lower temperatures resulted in less metal expansion.

Check out the new EZ Pack – Now order in the quart or EZ Pack.

easy squeeze pack

The SEVERE GEAR easy-pack eliminates the hassles of changing gear lube.

Performance

AMSOIL Severe Gear 75W-90 Hypoid Gear oil provides performance beyond that possible with conventional gear oil. This AMSOIL custom product offers superior gear and bearing protection, better friction and heat reduction, increased efficiency and extended service life.

Updated Product Data Sheet – Find out more about the whole like of Severe Gear

Download PDFProduct Datasheet

Temperature Extremes

AMSOIL Severe Gear EP Gear Lube excels in hot and cold temperature extremes. By design, it resists breakdown from high heat, preventing acids and carbon/varnish formation. Its wax-free construction also improves cold-flow properties, improving fuel economy and cold-weather shifting.

Ultimate Cold-Weather Protection

Some gear lubes fail to meet basic low-temperature requirements. Mobil 1 75W-140 Gear Oil, for example, failed to meet the requirements of the industry standards, AMSOIL SEVERE GEAR®, on the other hand, delivers 20% more cold-temperature protection than the standard requires. It delivers better cold-temperature protection than Mobil 1 and Valvoline SynPower.

Mobil 1 fails gear lube GL5

 

Applications

AMSOIL Severe Gear Synthetic EP Gear Lube is 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, buses, heavy equipment, 4X4s, tow trucks, race cars, tractors and motor homes.

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Performance Features

  • Superior Film Strength
  • Controls Thermal Runaway
  • Rust and Corrosion Protection
  • Helps Reduce Operating Temperatures
  • Maximum Efficiency
  • Long Oil, Seal & Equipment Life

For product service life in differentials, consult your owner’s manual or the Original Equipment Manufacturer (OEM) to establish the application, NORMAL or SEVERE.

Specifics and Clarifications

For product service life in differentials, consult your owner’s manual or the Original Equipment Manufacturer (OEM) to establish the application, NORMAL or SEVERE.

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.

Recommended for use in differentials, manual transmissions and other gear applications requiring any of the following specifications: API GL-5, MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037), Mack GO-J, or other GL-5 based specifications from vehicle manufacturers, including Ford*, GM* and Chrysler*. Can also be used in axles where an API GL-4 lubricant is recommended.

AMSOIL SEVERE GEAR (75W-90) provides superior performance and replaces competitors’ 75W-90 and 80W-90 gear oils. It delivers the best fuel efficiency and cold-temperature performance of the SEVERE GEAR oils.

AMSOIL SEVERE GEAR is compatible with conventional and synthetic gear oils. Mixing AMSOIL gear oil with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives, other than those specified by AMSOIL, are not recommended for use with AMSOIL gear oil.

AMSOIL SEVERE GEAR is compatible with most limited-slip differentials. For applications that require additional limited-slip friction modifier, add AMSOIL Slip Lock®.

 

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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 via the Internet at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute.

For warranty information, visit www.amsoil.com/warranty.aspx.

 

Severe Gear Product Reviews from Customers

Amsoil Severe Gear.

By  CHARLIE,  a  Verified Buyer  from  Florida   on  June 13, 2024
Serviced the differentials on a RAM 2500 so far all good.

Performance review

By  Todd,  a  Verified Buyer  from  Colorado  on  June 09, 2024
I have been using Amzoil gear oil in the differentials on my 3500 diesels for years and I do a lot of very heavy towing 20K plus pounds and have never had an issue! Very satisfied!

Packaging make the job easier

By  TROY,  a  Verified Buyer  from  Cloverdale, BC  on  June 01, 2024
Great product and the packaging makes getting the oil into tight locations easier.

Great Product

By  JAMES,  a  Verified Buyer  on  May 29, 2024
Used in my Canam X3, easy pour spout helps eliminate messes from happening!

Gear oil review

By  Brian,  a  Verified Buyer  from  OH  on  May 26, 2024
Runs great and cool, no wining what’s so ever.

Quality

By  ANDREW,  a  Verified Buyer  from  Aurora Missouri   on  May 18, 2024
Used this im my Kaiser jeep M35A2 military truck or known as the deuce and half got cooler temps quiter and better lubrication for sure seams to run more freely could actually feel a difference i also use the 5/30 signature series diesel oil in this truck with the cetane boost amsoil definitely knows how to make a high quality product

AMSOIL Severe Gear 75w-90w

By  Ted,  a  Verified Buyer  from  Michigan  on  May 07, 2024
I purchased this gear lube oil after lots of research and many positive reviews. I have a 2014 Chevy Equinox AWD that are known for many transfer case breakdowns that totally destroy the transfer case and the back differential. So after purchasing it I figured I would look for a solution before this happens and this was it. Another awesome thing is AMSOIL thought of everything on selling this product which was the packaging that made it so easy to refill both my transfer case and differential in very tight places which saved me money on purchasing a pump to fill them both.

2019 Manual Tacoma

By  ALEX,  a  Verified Buyer  on  April 30, 2024
2019 Tacoma TRD Sport Replaced factory differential oil at 25K. It seems like the truck coasts much easier, and there is less resistance across the torque range. There also seems to be less loading when shifting, like there is less binding in the drive train when in neutral or between gears. The factory oil was very dark with fines suspended in it (normal for these as I understand it), so I am not surprised at the perceived improvement in performance. It will be interesting to see what it looks like at 50K when it is time for the next replacement. The bag packaging made the fluid swap so much easier. Just squeeze the gear oil into the transmission and drain any remnants into the next bag. No more pumps, injectors, gear oil mess, or any real issues. I don’t think I could go back to the plastic bottles after doin a fluid swap with this packaging.

GREAT PRODUCT

By  TIM,  a  Verified Buyer  from  FLORIDA  on  April 27, 2024
USING THE AMSOIL SEVERE GEAR SYNTHETIC IN MY 2023 F150 4X4, AND OUR 2022 WILDTRAK BRONCO.

Excellent stuff

By  DOUG,  a  Verified Buyer  on  March 09, 2024
Excellent stuff never wasted a drop with the easy squeeze pack