Castrol TRANS MANUAL LL 75W-85

Long Life Manual Transmission Fluid

Product Description

Castrol TRANS MANUAL LL 75W-85 is a full synthetic manual transmission fluid (MTF) specially developed for commercial vehicle manual transmissions (trucks, buses, light commercial vehicles) requiring API GL-4 lubrication. It delivers enhanced thermal and oxidative stability, excellent cold flow performance, and high shear stability. These properties help maintain transmission cleanliness, reduce operating temperatures, and allow extended drain intervals under harsh conditions.

Applications

• Designed for manual transmissions (including synchromesh gearboxes) in heavy duty commercial and light commercial vehicles.

• Suitable where API GL-4 performance is required.

• Useful in transmissions operating under high loads and temperature.

• Particularly beneficial in applications demanding long life service intervals.

Specifications / Approvals

Castrol TRANS MANUAL LL 75W-85 meets or supports the following standards/approvals:

• API GL-4

• MB-Approval 235.4

• Volvo Transmission Oil 97307

• Eaton 500,000 km drain (Europe)

  Typical Physical Properties

  Property	Test Method	Typical Value
  Viscosity Grade	—	SAE 75W-85 (synthetic)
  Density @ 15 °C	DIN EN ISO 12185	0.837
  Kinematic Viscosity @ 40 °C	ASTM D445	64.6
  Kinematic Viscosity @ 100 °C	ASTM D445	11.9
  Viscosity Index	ASTM D2270	183
  Cold Flow / Low Temperature Properties (-40)	ASTM D2983	18000
  Flash Point	ASTM D-92	214
  Pour Point	ASTM D-97	-60

  Key Benefits / Features

  • Extended drain capability — maintains lubricant performance over longer service intervals.

  • Improved thermal & oxidative stability — helps reduce deposit formation and maintain cleanliness.

  • Low-temperature shiftability — better cold start & gear shift performance in demanding conditions.

  • Good wear & EP performance — protects internal components under heavy loads and stress