DSTrans50Mobil Delvac™ Synthetic Transmission Fluid 50

Mobil Delvac Synthetic Transmission Fluid 50 is a fully synthetic, manual transmission lubricant engineered to meet the most demanding extended drain and original equipment manufacturer warranty requirements. It is recommended for year-round lubrication of manual transmissions in light to severe duty on- and off-highway equipment operating in a wide range of environments.

The outstanding performance of this product is confirmed by its approval for heavy-duty transmissions covered by Eaton Roadranger and Extended Warranties of 750,000 miles, with oil drains of 500,000 miles.

Features & Potential Benefits

Features Advantages & Potential Benefits
Excellent load carrying, anti-wear, and EP performance Extends transmission life and reduces cost of operation
Outstanding protection against deposit formation Long 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
Improved friction reduction properties Improves fuel economy and lowers operating costs


  • Heavy-duty manual transmissions where extended service intervals and warranties are required
  • On-highway, commercial light and heavy duty trucking, buses, and vans
  • Off-highway industries including construction, mining, and agriculture
  • 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 or MIL-PRF-2105E lubricants are specified


Mobil Delvac Synthetic Transmission Fluid 50 meets the following industry and builder specifications:

Mobil Delvac Synthetic Transmission Fluid 50 has the following builder approvals:
Eaton Roadranger E500TM PS-164 Rev 7
Mack TO-A Plus
International TMS-6816
Volvo 97315
ZF FreedomLine