KLONDIKE Full Synthetic SAE 50 Manual Transmission Lubricant is a heavy duty transmission fluid specially formulated for extended drain applications and severe operating conditions. KLONDIKE Full Synthetic SAE 50 Manual Transmission Lubricant is recommended for service fill of heavy duty manual transmissions. Typical applications include on-highway heavy duty trucks and buses as well as off-highway heavy equipment in the forestry, construction and mining industries. The ideal manual transmission fluid to compliment the use of full synthetic gear lubricants in rear differentials and axles, thus offering outstanding service life and fuel economy benefits. KLONDIKE Full Synthetic SAE 50 Manual Transmission Lubricant?s low pour point and high viscosity index impart excellent lubrication protection during startup in extreme cold conditions, while also providing outstanding performance characteristics and excellent lubricant film strength across a wide temperature range. Optimized oil viscosity with low coefficient of friction can lead to reduced operating temperature and improved fuel economy as compared to conventional mineral-based lubricants.