Mobil Delvac 1 Transmission Fluid 50 delivers exceptional performance in today's manual transmissions. The key benefits include:

Features Advantages and Potential Benefits
Excellent load carrying, anti-wear, and EP performance Extends transmission life and reduces cost of operation
Outstanding protection against deposit formation Longer seal life, extended drain and service intervals
Maximum protection from corrosion of copper and its alloys Protects and extends the life of synchronizers
Optimized thermal and oxidation protection Extends component life and improves efficiency
Exceptional shear stability Minimizes wear during severe operation
Outstanding low-temperature fluidity Reduces wear during cold temperatures and improves shifting with quicker starts
Extended drain and service interval capability Provides lower operating costs and higher productivity


Recommended by ExxonMobil for use in:

  • Heavy-duty manual transmissions where extended service intervals and warranties are required
  • Commercial line haul, vocational, off-road, pick-up and delivery, and bus applications
  • Use as a companion with Mobil Delvac Synthetic Gear Oils in rear axles for maximum component life, service efficiency, and fuel economy improvement
  • NOT suitable for hypoid gear applications in differentials and final drives, either for topping-off or refills, where API service GL-5, MIL-PRF-2105E or SAE J2360 lubricants are specified


Mobil Delvac 1 Transmission Fluid 50 meets or exceeds the requirements of the following industry and builder specifications: 


Mobil Delvac 1 Transmission Fluid 50 has the following builder approvals: 
Navistar MPAPS B-6816 Type 1 X
ZF FreedomLine X

Mobil Delvac 1 Transmission Fluid 50 is recommended by ExxonMobil for use in applications requiring:
Eaton PS-164 Rev 7 X

Typical Properties

Mobil Delvac 1 Transmission Fluid 50 
SAE Grade 50
Viscosity, ASTM D 445  
cSt @ 40ºC 132
cSt @ 100ºC 17.5
Viscosity Index, ASTM D 2270 146
Pour Point, ºC, ASTM D 97 -45
Flash Point, ºC, ASTM D 92 221
Density @ 15ºC kg/l, ASTM D 4052 0.86


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