AMSOIL SAE 30 100% SYNTHETIC POWERSHIFT TRANSMISSION FLUID

AMSOIL SAE 30 100% SYNTHETIC POWERSHIFT TRANSMISSION FLUID

Product Code Package Size Unit of Measure
CTJ05-EA 5 Gallon Pail Each
CTJ55-EA 55 Gallon Drum Each
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AMSOIL SAE 30 100% Synthetic Powershift Transmission Fluid delivers stable friction performance, superior wear protection, and extended service life in the most demanding heavy-duty powershift transmissions, wet brakes, and final drives. Built from full-synthetic base oils with a heavy additive package tailored specifically for powershift applications, this fluid keeps high-torque equipment running clean and shifting smoothly.

Powershift transmissions in dozers, wheel loaders, backhoe loaders, and mining equipment operate under punishing conditions. Sustained high torque, extreme temperature swings, and constant clutch engagement all conspire to break down conventional fluids quickly. When the fluid loses its frictional properties or shears out of grade, clutch slippage, glazing, and accelerated component wear follow. The right fluid needs to handle all of these demands simultaneously, because in powershift applications the transmission fluid also serves as the hydraulic fluid, brake fluid, and gear lubricant.

PREVENTS CLUTCH SLIPPAGE AND GLAZING
Clutch glazing is one of the most common and costly problems in powershift transmissions. It starts when fluid friction properties degrade, allowing micro-slippage that generates heat, deposits friction-surface material, and eventually causes full slippage. AMSOIL Synthetic Powershift Transmission Fluid is compatible with both metallic and non-metallic friction materials and maintains stable, non-slip friction characteristics throughout its service life. This translates to responsive yet smooth clutch engagements, reduced brake noise and vibration, and excellent power transmission through clutches and synchronizers.

STAYS IN GRADE UNDER SUSTAINED HIGH TORQUE
Shear stability is critical in any transmission fluid, but it matters even more in powershift applications where the fluid is constantly subjected to extreme mechanical forces. AMSOIL Synthetic Powershift Transmission Fluid meets the wear and frictional requirements of the Caterpillar TO-4 specification and resists viscosity breakdown over extended service intervals. A fluid that shears out of grade leaves gears and bearings vulnerable. This formulation stays at its intended SAE 30 viscosity, maintaining a kinematic viscosity of 11.0 cSt at 100°C and 75.0 cSt at 40°C as measured by ASTM D445, with a viscosity index of 136.

PROTECTS ACROSS WIDE TEMPERATURE EXTREMES
Heavy equipment often sits idle overnight in freezing conditions, then runs at full load in extreme heat the same day. AMSOIL Synthetic Powershift Transmission Fluid has a pour point of -43°C (-45°F), flowing readily at cold startup to protect components before the system reaches operating temperature. At high temperatures, its superior oxidative and thermal stability inhibits the formation of varnish, sludge, and deposits. The flash point of 228°C (443°F) reflects the thermal resilience of the synthetic base oil. The fluid also functions as a heat-transfer medium, helping cool hot-running transmissions and brakes.

WEAR PROTECTION WHERE IT COUNTS
Gears, bearings, and hydraulic components in powershift systems need a fluid that can handle boundary lubrication conditions without failing. In ASTM D4172B Four-Ball Wear Testing at 40 kg load, 75°C, 1200 rpm for one hour, AMSOIL SAE 30 Synthetic Powershift Transmission Fluid produced a wear scar of just 0.45 mm. Combined with its anti-foam, anti-rust, and copper corrosion inhibition properties, this fluid provides comprehensive protection even during extended storage periods when equipment is not in use.

GUARDS AGAINST CORROSION AND FOAM
Foam in a powershift transmission means air in the fluid, which means compressible hydraulic response, poor heat transfer, and metal-to-metal contact. AMSOIL Synthetic Powershift Transmission Fluid resists foaming in service. It also provides active protection against rust and copper corrosion, keeping internal components clean and ready to perform whether the machine runs every day or sits for weeks between jobs.

SPECIFICATIONS AND COMPATIBILITY
AMSOIL SAE 30 Synthetic Powershift Transmission Fluid is recommended for applications requiring the following specifications: Allison C-4, Caterpillar TO-4, Komatsu KES 07.868.1, and ZF TE-ML 03C. It is suitable for use in Caterpillar, Allison, Komatsu, Clark, Hurth, Borg-Warner, Twin Disc, Voith, ZF, Funk, and Brockhouse powershift-type transmissions, as well as Eaton/Rockwell/Fuller transmissions. It is fully compatible with other TO-4 fluids used in powershift applications. To install, drain the existing fluid, replace the filter if equipped, and fill with AMSOIL Synthetic Powershift Transmission Fluid.

SERVICE LIFE
AMSOIL Synthetic Powershift Transmission Fluid provides extended service life beyond conventional petroleum fluids when kept free of dirt and moisture. In CD-50 manual transmission applications, it may be used up to 60,000 miles or one year, whichever comes first. For other applications, follow OEM recommendations. Oil analysis is recommended when extending drain intervals beyond manufacturer guidelines.

Property CTG (SAE 10W) CTJ (SAE 30) CTL (SAE 50) Test Method
Kinematic Viscosity @ 100°C, cSt 7.1 11.0 18.2 ASTM D445
Kinematic Viscosity @ 40°C, cSt 41.5 75.0 165.2 ASTM D445
Viscosity Index 132 136 123 ASTM D2270
Flash Point, °C (°F) 248 (478) 228 (443) 224 (435) ASTM D92
Fire Point, °C (°F) 246 (475) 252 (486) 246 (475) ASTM D92
Pour Point, °C (°F) -48 (-54) -43 (-45) -36 (-33) ASTM D97
Four-Ball Wear Test, scar (mm) 0.35 0.45 0.45 ASTM D4172B (40 kg, 75°C, 1200 rpm, 1 hr)

FAQs

What equipment is AMSOIL SAE 30 Synthetic Powershift Transmission Fluid designed for?

AMSOIL SAE 30 Synthetic Powershift Transmission Fluid (CTJ) is specifically designed for high-torque, heavy-duty powershift transmissions found in dozers, wheel loaders, crawlers, backhoe loaders, cranes, off-road fork trucks, road graders, mining equipment, railway equipment, harbor-handling equipment, and commercial marine applications. It can also be used in heavy-duty manual transmissions. It is compatible with Caterpillar, Allison, Komatsu, Clark, Hurth, Borg-Warner, Twin Disc, Voith, ZF, Funk, Brockhouse powershift-type transmissions, and Eaton/Rockwell/Fuller transmissions.

How does AMSOIL SAE 30 Powershift Transmission Fluid prevent clutch slippage and glazing?

AMSOIL SAE 30 Synthetic Powershift Transmission Fluid is formulated with stable frictional characteristics and non-slip friction properties specifically designed to prevent clutch slippage, which can cause glazing, friction-surface deposits, and material degradation. It is compatible with common metallic and non-metallic friction materials, delivering responsive yet smooth clutch engagements, excellent power transmission through clutches and synchronizers, and helping eliminate excessive brake noise and vibration.

What specifications does AMSOIL SAE 30 Synthetic Powershift Transmission Fluid meet?

AMSOIL SAE 30 Synthetic Powershift Transmission Fluid (CTJ) is recommended for applications requiring the Allison C-4, Caterpillar TO-4, Dana Powershift Transmissions, Komatsu KES 07.868.1, and ZF TE-ML 03C specifications. It meets the wear and frictional requirements of the Caterpillar TO-4 specification and is formulated for superior shear stability, allowing it to stay in grade throughout its entire service life even under sustained high-torque conditions.

How does AMSOIL SAE 30 Powershift Transmission Fluid compare to conventional petroleum transmission fluids?

AMSOIL SAE 30 Synthetic Powershift Transmission Fluid provides extended service life beyond conventional petroleum fluids when kept free of dirt and moisture. Its 100% synthetic base oils and high level of specialized additives deliver superior oxidative and thermal stability that inhibits the formation of varnish, deposits, and sludge, keeping equipment running cleaner than conventional fluids. Its superior shear stability means it stays in grade throughout its service life, while conventional fluids may shear down and lose protection under sustained high-torque conditions.

How long can I run AMSOIL SAE 30 Synthetic Powershift Transmission Fluid before changing it?

AMSOIL SAE 30 Synthetic Powershift Transmission Fluid is formulated for extended drain intervals beyond conventional petroleum fluids, provided it is kept free of dirt and moisture. In CD-50 manual transmission applications, it may be used up to 60,000 miles or one year, whichever comes first, or as specified by the OEM. Oil analysis is recommended if extending service intervals beyond equipment manufacturer recommendations to verify fluid condition.

Is AMSOIL SAE 30 Powershift Transmission Fluid compatible with other TO-4 fluids already in my equipment?

Yes, AMSOIL SAE 30 Synthetic Powershift Transmission Fluid is fully compatible with other TO-4 fluids used in powershift applications. To install it, AMSOIL recommends draining the existing fluid from the system, replacing the filter if equipped, and then filling with the appropriate viscosity of AMSOIL Powershift Transmission Fluid. It also guards against copper corrosion, rust, and foaming, making it safe for all common transmission components even during extended equipment storage periods.

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