Transmission Gear oils
Available with
High-quality lubricants certified to meet OEM cleanliness requirements.
Heavy Duty Gear Oils: On Highway
Delo® Syn ATF HD
Delo® Syn ATF HD is specially engineered for heavy duty automatic truck and bus transmissions operating in extended service. It is officially approved by Voith and ZF for extended drain intervals.
Delo® Syn-Gear HD
SAE 75W-90
Delo Syn-Gear HD gear lubricant is a heavy duty, extreme pressure, multigrade automotive gear lubricant.
Delo® Gear ESI SAE 80W-90
SAE 80W-90
Premium grade gear lubricant for severe temperature and load conditions. 
Delo® Gear ESI SAE 85W-140
SAE 85W-140
Premium grade lubricants for gearsets exposed to extremely high temperatures and loads.
Delo® Syn-Gear XDM SAE 75W-90
A premium heavy-duty, extreme pressure gear lubricant for critical components.
Delo® Syn-Gear XDM SAE 80W-140
SAE 80W-140
A premium heavy-duty, extreme pressure gear lubricant for critical components.
Delo® Syn-Trans HD
SAE 50
A heavy-duty  manual transmission fluid for all-weather, year-round protection and performance.
Delo® Syn-Trans XE
SAE 75W-90
Delo® Syn-Trans XE is a heavy duty truck synthetic automated manual transmission (AMT) fluid specially formulated for extended drain and severe service operations, and recommended for both factory and service fill of Eaton Ultra Shift Automated Manual Transmissions.
Delo® Syn-Trans XE SAE 75W-90
A heavy duty  synthetic manual transmission fluid for severe service operations.
Delo® Syn-Trans XV SAE 75W-80
A full synthetic fluid for Volvo I-Shift and Mack® mDrive™ automated manual transmissions. 
Chevron Gear Oil GL-1
90, 140
Chevron Gear Oil GL-1 are rust and oxidation inhibited gear oils that are recommended for many automotive and industrial equipment where the equipment suppliers recommend the use of a straight mineral oil in SAE viscosity grades 90 (ISO 220) or 140 (ISO 460).
Delo® Syn-AMT XDT
SAE 75W-90
Delo® Syn-AMT XDT is a heavy duty truck synthetic automated manual transmission (AMT) fluid specially formulated for extended drain and severe service operations, and recommended for both factory and service fill of Daimler DT-12 Automated Manual Transmissions installed on most Freightliner or Western Star trucks that have DD15 or DD13 diesel engines.
Delo® Syn-Gear XDA
75W-85
Delo® Syn-Gear XDA is a premium heavy duty, extreme pressure, multigrade automotive gear lubricant formulated for new generation Daimler axles found on newer model Freightliner and Western Star Trucks.