Mobiltrans AST Series

High Performance Multigrade Transmission and Drive Train Lubricants

Mobiltrans™ AST 30 and Mobiltrans™ AST Extra 20 are high performance multigrade transmission and drive train lubricants. These products are uniquely designed to provide low temperature and multi-season service in powershift transmissions, gearboxes, clutches , final drives and hydraulic systems. Mobiltrans AST 30 and Mobiltrans AST Extra 20 can be used in cold ambient temperatures down to -35ºC and -45ºC respectively.

The technology in Mobiltrans AST 30 and Mobiltrans AST Extra 20 combines selected base oils and an advanced additive system to deliver the precise performance parameters needed to maximize the productivity of construction, logging, mining and agriculture equipment operating in severe conditions.

 

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Features and Benefits

Today's technology has vastly improved the performance capabilities of heavy-duty off-highway equipment in terms of load, speed, control, reliability and performance through innovative drive train designs. These designs have increased the requirements of drive train fluids to deliver higher performance, increased productivity and reduced operating costs. Friction control, wear protection, thermal stability, shear stability, rust and corrosion protection and seal compatibility are features of the drive train fluid that must be optimally balanced to provide extended clutch, gear and synchronizer life, smooth shift control and high load capability over a wide range of applications and operating conditions. Mobiltrans AST 30 and Mobiltrans AST Extra 20 deliver exceptional performance in today's drive train components and hydraulic systems. The key benefits include:

Features Advantages and Potential Benefits
Excellent frictional properties Optimum clutch friction retention & slippage control
Excellent anti-chatter brake performance
Extended clutch & brake life
Excellent load carrying, anti - wear and EP performanceGreater wear protection, extended component life, reduced cost of operation
Outstanding protection against deposit formation  Longer seal life, extended drain & service intervals 
Protection from corrosion of copper and its alloys   Protects and extends the life of synchronizers 
Compatible with clutch materials and elastomers Long clutch component & seal life, reduced oil leakage 
Excellent foam control protection Optimum performance in wet brakes, hydraulic system 
Excellent thermal and oxidation stability  Long oil life, reduced wear, extended equipment life 
Exceptional shear stability Maintains effective viscosity and film strength during severe operation
Outstanding low-temperature fluidity and pumpabilityReduced time from start-up to production, smoother shifting with quicker starts and reduced wear
Multi-season capability Extended drain and service intervals with lower operating costs and higher productivity

 

Applications

  • Heavy duty transmissions, gear boxes, final drives, and hydraulic systems used in off-highway construction, logging, mining and agriculture equipment
  • Suitable for most mobile equipment hydraulic applications

 

Specifications and Approvals

  • CAT TO-4 Quality Level

 

Typical Properties

Mobiltrans AST SeriesMobiltrans AST 30Mobiltrans AST Extra 20
Viscosity, ASTM D445  
cSt @ 40ºC 57.632.9
cSt @ 100ºC 10.57.5
Viscosity Index, ASTM D2270 173206
CCS Viscosity, cP, ASTM D5293 6200 @ -30ºC 2,014 @ -30ºC
 3,323 @ -35ºC
MRV Viscosity, cP, ASTM D4684 13,150 @ -35ºC 3,594 @ -35ºC
6,885 @ -40ºC
Brookfield Viscosity, cP, ASTM D2983 14,000 @ -35ºC 7,000 @ -40ºC
Low Temperature Pumpability, °C, D4684 -43-53
Pour Point, ºC, ASTM D97 -45-54
Flash Point, ºC, ASTM D92 180170
Density, kg/m3 @ 15ºC, ASTM D4052 879873

Ambient Temperature Recommendations, ºCMobiltrans AST 30Mobiltrans AST Extra 20
Transmissions-35 to +35-45 to +20
Hydraulics-35 to +50-45 to +40
Final Drives (Except off-highway trucks, large wheel loaders and large wheel tractors)-35 to +25-45 to +10
Final Drives (Off-highway trucks, large wheel loaders and large wheel tractors)-35 to +15-45 to 0

 

Precautions

The products described on this data sheet are manufactured from high quality petroleum base stocks, carefully blended with selected additives. As with all petroleum products, good personal hygiene and careful handling should always be practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Please refer to the Material Safety Data Sheet for further information.

Note: The products described on this data sheet are NOT controlled under Canadian WHMIS legislation.

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