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Synthetic Powershift Transmission Fluid SAE 30 (CTJ)
Advanced Formulation for Powershift and Manual Transmissions,
Wet Brakes and Final Drives

See Pricing Information or Place an Order through the AMSOIL Online Store

Package sizes include:

5-Gallon Pail
55-Gallon Drum

(Also see SAE 10W and SAE 50 Powershift Transmission Fluid)

AMSOIL Synthetic Powershift Transmission Fluids are specifically designed for high-torque heavy-duty powershift transmissions. Formulated for extended drain intervals, Powershift Transmission Fluids contain top-quality synthetic base stocks and a high level of top-quality additives selected specifically for powershift transmissions. They offer unmatched transmission friction performance, smooth brake operation, reduced gear and bearing wear and increased equipment life.

Friction Characteristics
AMSOIL Synthetic Powershift Transmission Fluids are compatible with common metallic and nonmetallic friction materials. Their stable frictional characteristics eliminate excessive brake noise and vibration. Their nonslip friction durability virtually eliminates clutch slippage, which can cause glazing or friction surface deposits and material degradation. Powershift Transmission Fluids are formulated to deliver responsive yet smooth clutch engagements, excellent power transmission through clutches and synchronizers and superior hydraulic fluid performance for servo-equipped units.

Wear Protection
AMSOIL Synthetic Powershift Transmission Fluids exceed the wear requirements of the Caterpillar TO-4 specification and are formulated without viscosity index improvers for superior shear stability. The superior shear stability of Powershift Transmission Fluids allows them to maintain grade throughout service life, providing long-term protection against equipment wear, even when equipment is frequently subjected to sustained periods of applied pressure or high horsepower and high torque.

High and Low Temperature Performance
In high temperatures, AMSOIL Synthetic Powershift Transmission Fluids effectively protect components from wear. Their superior oxidative and thermal stability inhibits the formation of varnish, deposits and sludge so equipment runs clean. Synthetic Powershift Transmission Fluids are excellent heat transfer fluids and may help hot-running equipment operate cooler and run in its optimal temperature range. In low temperatures, Synthetic Powershift Transmission Fluids flow readily for dependable startup and post-startup protection.

Copper Corrosion, Rust and Foam Inhibition
AMSOIL Synthetic Powershift Transmission Fluids protect equipment from copper corrosion and rust, even during equipment storage. Synthetic Powershift Transmission Fluids do not foam in service, protecting equipment from the metal-to-metal contact and wear that occurs with use of foam-filled fluids.

Performance Data
AMSOIL SAE 30 (CTJ) Synthetic Powershift Transmission Fluid is Recommended for Applications Requiring the Following Specifications:

  • Caterpillar TO-4, TO-4M
  • Twin Disc
  • Komatsu T-30
  • Allison C-4
  • Rockwell/Eaton/Fuller CD-50 (PS-081)
  • ZF TE-ML 01, 03C, 07F
  • API GL-1


  • Dozers
  • Semi-trucks manual transmissions
  • Wheel loaders and crawlers
  • Back hoe loaders
  • Cranes
  • Off-road fork trucks
  • Harbor handling equipment
  • Railway equipment
  • Mining equipment
  • Road graders
  • Commercial boats

AMSOIL Synthetic 30W Powershift Transmission Fluid can be used in Caterpillar, Allison, Komatsu, Clark, Hurth, Borg-Warner, Twin Disc, Voith, ZF, Funk and Brockhouse powershift-type transmissions and Eaton/Rockwell/Fuller transmissions.

AMSOIL Synthetic Powershift Transmission Fluids are fully compatible with other TO-4 fluids used in powershift applications. To install AMSOIL Synthetic Powershift Transmission Fluids, drain the fluid in the system, replace the filter (if so equipped) and install the appropriate Powershift Transmission Fluid.

Service Life
AMSOIL Synthetic Powershift Transmission Fluids provide extended service life beyond conventional petroleum fluids if Synthetic Powershift Transmission Fluids are kept free of dirt and moisture. Oil analysis is recommended if extending service intervals beyond equipment manufacturer recommendations.

AMSOIL Synthetic Powershift Transmission Fluids may be used for 250,000 miles or two years (whichever comes first) in CD-50 manual transmission applications.

Typical Technical Properties
AMSOIL SAE 30 Synthetic Powershift Transmission Fluid (CTJ)
SAE Viscosity Grade 30
ISO Viscosity Grade 68
Kinematic Viscosity @ 100 C, cSt (ASTM D-445) 11.0
Kinematic Viscosity @ 40 C, cSt (ASTM D-445) 76.2
Viscosity Index (ASTM D-2270) 133
Flash Point C (F) (ASTM D-92) 259 (498)
Fire Point C (F) (ASTM D-92) 272 (522)
Pour Point C (F) (ASTM D-97) -46 (-51)
Four Ball Wear Test 40 kg. 75C, 1200 rpm, 1 hour (ASTM D-4172 B) 0.35
Noack 250C, 1 hour, percent weight loss (DIN 51581) 3.6
(Also see SAE 10W and SAE 50 Powershift Transmission Fluid)