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High-Performance Manual Transmission Fluid


  • Reduces Wear
  • Smoother Shifts
  • Quieter Operation
  • Longer Oil Life
  • Low Temperature Fluidity


  • A blend of premium mineral and synthetic lubricants and meets the requirements of Caterpillar TO-4; Allison C-4*, CF-2 and CF; Eaton; and Dana manual transmissions.
  • Manual transmission fluid provides outstanding friction performance with both the metallic and nonmetallic friction materials found in today’s hi-tech power-shift transmissions. The frictional characteristics in Royal Purple’s CMT™ eliminate excessive brake noise and prevent clutch slippage — even under heavy loads on steep inclines.
  • Provides excellent low temperature fluidity for easier cold weather starting, superior corrosion and rust protection and maximum foam protection against entrained air. This combined with CMT’s additive technology promotes greater oil life, smoother brake operation, reduced gear wear, controlled power-shift transmission friction and more reliable equipment.
  • *CMT 30 meets or exceeds Allison C-4 requirements