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Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil


Castrol TRANSMAX Universal 75W - 1 Litre

1 Litre


Castrol TRANSMAX Universal 75W - 20 Litres

20 Litres


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  • Description
  • Benefits
  • Specifications
  • Shipping Explained

Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Castrol TRANSMAX Universal 75W-90 is multipurpose gear lubricant featuring high temperature stability to give  superior performance and extended drain potential. It allows for smooth gear shifting at all temperatures and helps to extend component life and reduce maintenance costs due to its excellent wear protection.

Suitable for use in both synchronised manual transmissions and final drives and differentials where either API GL-4 or API GL-5 are specified.

PDF Downloads:

Download the Technical PDFDownload the Safety PDF


  • A single product for transmissions and final drives reducing inventory and the potential for misapplication
  • High temperature stability gives superior performance and extended drain potential
  • Optimised synchroniser performance gives smooth gear shifting at all temperatures
  • Excellent wear protection extends component life and reduces maintenance costs
  • Certified carbon neutral product (PAS 2060)


  • API GL-4/GL-5


SHIPPING IS FREE* for orders of £75 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 £5.99 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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