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Motul HD 80w-90 Extreme Pressure Gear & Differential Oil GL4 GL5

Motul HD 80w-90 Extreme Pressure Gear & Differential Oil GL4 GL5

Motul HD 80w-90 - 1 Litre

1 Litre


Motul HD 80w-90 - 5 Litres

5 Litres


Motul HD 80w-90 - 20 Litres

20 Litres


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  • Description
  • Benefits
  • Specifications
  • Technical Info
  • Shipping Explained

Motul HD 80w-90 Extreme Pressure Gear & Differential Oil GL4 GL5

General Details:

SAE viscosity class80W-90
API specificationGL-4
API specificationGL-5
SpecificationMIL-L 2105 D
for components see parts list

Addtional Images:

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Motul HD 80w-90 Extreme Pressure Gear & Differential Oil for all mechanical transmission synchronised / non-synchronised gearboxes, gearbox/differential, transfer gearboxes and hypoid differentials without limited slip system operating under shocks, heavy loads and low revolution speed or moderate loads and high revolution speed.  

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • Extreme pressure lubricant for an efficient anti wears protection.
  • Stays in 90 grade after KRL 20 hours shear test as requested by SAE J306 Standard.
  • Very high lubricating power which decreases friction and wear.
  • 90 grade at hot temperature to provide outstanding oil film resistance at hot temperature and/or to reduce transmission noise.
  • Suitable for any type of seal and yellow material used in gearboxes design.
  • Anti-corrosion, Anti-foam. 


  • Standards
    • API GL4 and GL5
    • MIL-L-2105D

Technical Information:

Viscosity grade SAE J 306 80W-90
Density   at   20°C (68°F) ASTM D1298 0.890
Viscosity at   40°C (104°F) ASTM D445 144 mm²/s
Viscosity at   100°C (212°F) ASTM D445 15.0 mm²/s
Viscosity index VIE ASTM D2270 105
Flash point ASTM D92 210°C / 410°F
Pour point ASTM D97 -27°C / -16°F


SHIPPING IS FREE* for orders of £60 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £4.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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