Too often Differentials are out of sight, out of mind. However, towing and heavy hauling focus intense pressure on the ring-and-pinion gears, inviting wear.
Intense heat causes gear lube to thin, reducing viscosity and further increasing heat in a cycle known as thermal runaway. Left unchecked, thermal runaway can shorten component life and lead to catastrophic failure.
Extreme-pressure formulations guard against metal-to-metal contact for maximum wear control. Their synthetic chemistries reduce friction and drag for increased fuel efficiency while providing extended drain intervals for the convenience of longer-lasting fluids.