235197 5 Gallon Pail 18 9 Liter

Spectro Premium Hypoid Gear Lubricant is a multi-viscosity SAE 80W90 GL5 lubricant specifically formulated for Harley-Davidson 4-speed and 5-speed Big Twin transmissions. This extreme high-pressure gear oil exceeds API classifications GL1 through GL5, providing protection for internal components. The specialized additive package improves fluid flow to bearings, resulting in easier shifting and reduced drivetrain friction. By minimizing wear under heavy loads, this lubricant ensures the longevity of the transmission gears and provides smooth operation during both city riding and long-distance touring. It is an ideal choice for maintaining the mechanical efficiency of traditional gearboxes.