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Motul Gear 300 75W-90 Fully Synthetic Racing Car Gearbox & Diff Oil

Motul Gear 300 75W-90 Fully Synthetic Racing Car Gearbox & Diff Oil

Motul Gear 300 75W-90 gearoil - 20 Litres

20 Litres


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

Motul Gear 300 75W-90 Fully Synthetic Racing Car Gearbox & Diff Oil

Specially designed for racing vehicle gearboxes : speed way, rally, raid...

Perfect for all mechanical transmissions where a 75w-90 gearbox oil is specified, synchronised or non-synchro 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.

100% synthetic extreme pressure lubricant for an efficient anti wear protection, a better resistance at high temperature and a longer life time.

  • 0% shear loss
    • Unshearable oil film in extreme conditions.
    • Stays in 90 grade after KRL 20 hours shear test as requested by SAE J306 Standard, July 1998 update.
  • 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.
  • Fluid at low temperature to allow easier gear shifting when the gearbox is cold.
  • Less effort required on the gear lever to shift the gears.
  • Suitable for any type of seal and yellow material used in gearboxes design.
  • Anti-corrosion, Anti-foam.

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • 100% synthetic.
  • extreme pressure lubricant.
  • anti wear protection.
  • resistance at high temperature.
  • 0% shear loss, Unshearable oil film in extreme conditions.
  • Decreases friction and wear.
  • Reduce transmission noise.
  • Easier gear shifting when the gearbox is cold.
  • Suitable for any type of seal and yellow material.
  • Anti-corrosion, Anti-foam.


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

Technical Information:

Viscosity grade                    SAE J306                  75W-90
Density at 15°C (59°F)       ASTM D1298            0.900
Viscosity at 40°C (104°F)   ASTM D445              72.6 mm²/s
Viscosity at 100°C (212°F) ASTM D445             15.2 mm²/s
Viscosity index VIE             ASTM D2270           222
Flash point                          ASTM D92               200°C / 392°F
Pour point                           ASTM D97               -60°C / -76°


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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We say...

"Motul's top gear oil, very good quality and performs very well. If you are after a performance/race spec gear oil this could be it"

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