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SUNOCO DURATRANS 40W FULL SYNTHETIC TRANSMISSION OIL is a full synthetic, premium quality, SAE 40 heavy duty manual transmission lubricant designed for fuel efficiency, extended drain intervals and severe service in heavy duty commercial vehicle transmissions which require a non-EP transmission lubricant. It is formulated for stability under severe operating conditions and provides outstanding cleanliness, superior oxidation stability and excellent low temperature performance.


SUNOCO DURATRANS 40W FULL SYNTHETIC TRANSMISSION OIL provides extended drain intervals, all season performance and extended gear life over conventional oils. Its excellent thermal stability and extreme pressure properties allow for high load capacity and high shear stability. SUNOCO DURATRANS 40W FULL SYNTHETIC TRANSMISSION OIL has excellent low temperature properties and protects against corrosion, oxidation, and sludge and varnish buildup and is compatible with typical automotive seals and gaskets. 


SUNOCO DURATRANS 40W FULL SYNTHETIC TRANSMISSION OIL 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 and gear cases where API GL-1 through API GL-4 protection is recommended. 


SUNOCO DURATRANS 40W FULL SYNTHETIC TRANSMISSION OIL is recommended for use against the following OEM specifications:


API GL-4/MT-1 • ArvinMeritor O-81 • Detroit Diesel DT12 • Eaton PS-386 • Mack TO-A Plus, mDrive • MANN 341 SL • Navistar TMS-6816 • Meritor ZF Freedomline • MIL-PRF-2105E • SAE J2360 • Volvo STD 97305, iShift • ZF TE-ML 02L

*Always use an OEM approved fluid for where warranty maintenance is a concern.

Product Code


SAE Viscosity Grade


Viscosity, cSt @ 40 °C


Viscosity, cSt @ 100 °C


Viscosity Index


Flash Point, °C


Pour Point °C


Foaming Sequences I, II, III


Density @ 15°C