Features

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

Applications

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

Specifications

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

 

Mobil Delvac 1 Transmission Fluid 50 has the following builder approvals: 
Mack TO-A PLUS X
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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Q&A

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Browse 2 questions Browse 2 questions and 11 answers
Why did you choose this?
The Lubricant Store Store
Great fluid for an eaton road ranger
Carr R on Mar 17, 2019
Recommended by a manual transmission rebuilder for the NV5600
Peter C on Aug 6, 2018
Great fluid for an eaton road ranger
Carr R on Mar 17, 2019
All I’ll use are Mobil products.
Troy F on Aug 31, 2018
Recommended by a manual transmission rebuilder for the NV5600
Peter C on Aug 6, 2018
I've always used Mobil syn in my trucks... No issues ever.
James T on Jul 14, 2018
Its the recommended by the manufacturer. and they have great prices and service
Maykel H on May 29, 2018
OEM recommendation for use
Rick S on Mar 27, 2018
The best oil for the G56 transmission.
Shannon M on Mar 26, 2018
Recommended by South Bend Clutch
Rider on Mar 3, 2018
All I’ll use are Mobil products.
Troy F on Aug 31, 2018
I've always used Mobil syn in my trucks... No issues ever.
James T on Jul 14, 2018
Does this meet or exceed PS-386 specifications?
A shopper on Oct 12, 2018
BEST ANSWER: No, this does not meet the PS386 specs, if you are looking for something that will it would be the Mobil Delvac 1 Transmission Fluid 40 (part# XOM122961).
Mobil Delvac 1 Transmission Fluid 40 (5 Gal. Pail)
Mobil Delvac 1 Transmission Fluid 40 (5 Gal. Pail)