Transmission Fluids

Drydene TransALL® TDTO-4 SAE 50

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DRYDENE TRANSALL® TDTO-4 Transmission/Drive Train SAE 50 is a highly specialized lubricant designed for use in mobile off-highway and stationary equipment that requires either Caterpillar® TO-4 or Allison® C-4 specifications.  This fluid provides excellent wear protection and extended performance over a broad range of temperatures.



DRYDENE  TRANSALL TDTO-4 Transmission/Drive Train Fluids are recommended for:

  • Heavy-Duty equipment requiring Caterpillar® TO-4 specifications
  • Manual transmissions where Allison® C-4 or API GL-3 fluids are required
  • Powershift transmissions
  • Hydrostatic transmissions
  • Wet brake systems
  • Torque converters
  • Differentials
  • Final drives and other related hydraulic systems.



DRYDENE  TRANSALL® TDTO-4 Transmission/Drive Train Fluid SAE 50 is engineered with premium base stocks and modern performance additives for:

  • Long term, trouble free service
  • High torque applications
  • Resistance to stress under heavy loading
  • Excellent wear protection
  • Minimizing clutch slippage for maximum power transfer
  • Extending the life of clutch materials
  • Eliminate chatter in wet brake systems
  • Protect components against wear
  • Prevent friction surface glazing
  • Resist high heat oxidation

DRYDENE  TRANSALL® TDTO-4 Transmission/Drive Train Fluid SAE 50 is built to resist oxidation and help prevent the formation of corrosive deposits.  They are stable in a wide range of temperature applications and maintain their efficiencies even in critical temperature conditions.



  • Allison®– C-4 (off-road)
  • Caterpillar®–  TO-4
  • Dresser
  • Komatsu Equipment
  • Vickers–  M2950-S
  • DANA–  Powershift (where TO-4 is referenced)
  • EATON Fuller (where TO-4 is referenced)
  • ZF–  TEML03C



Viscosity @ 40°C, cSt ASTM D445 216
Viscosity @ 100°C, cSt ASTM D445 19.2
Viscosity Index ASTM D2270 101
Flash Point °C ASTM D92 210
Pour Point °C ASTM D5950 -26
Zinc, wt.% ASTM D4927 0.125
TBN ASTM D2896 7.1
Gravity, API ASTM D4052 25.0
Specific Gravity @ 60°F ASTM D4052 0.888
Foam Seq I/II/III ASTM D892 Pass