Motor Oil Info

Automatic transmissions have become increasingly complex as vehicle manufacturers strive to improve efficiency while satisfying consumer demands. Smaller, smoother-shifting transmissions with longer fluid life capabilities and heavier load capacities are now standard. Traditional Automatic Transmission Fluids, however, are unable to meet these extreme requirements, and new fluids have emerged with each new advancement in transmission engineering. AMSOIL, with its original introduction of a synthetic ATF in 1980, remains the leader in transmission fluid quality.

AMSOIL Synthetic low-Viscosity Automatic Transmission Fluid is formulated with the highest-quality components to exceed the most stringent industry standards. Low-Viscosity Automatic Transmission Fluid is a fuel-efficient fluid, it has demonstrated its ability to protect as well as or better than higher-viscosity fluids in the most severe industry tests.

The rotating motion of the gear sets also tends to churn the lubricant, resulting in foaming. If a gear lube foams, the load carrying capacity is significantly reduced because the air suspended within the oil is compressible. For example, when the gear teeth come into contact with each other any trapped air bubbles will compress, therefore reducing the thickness of the separating oil film. In turn, this reduction could lead to direct metal-to-metal contact between gear teeth and result in accelerated wear.

The gear lube must have the ability to dissipate this entrapped air, insuring sufficient lubricating film exists to protect the gears from contact wear. Much like engine oil the chemical compounds, or additives, added to drivetrain stocks either enhance existing properties or impart new ones.