Aluminum Beaker Oxidation Testing (ABOT)

The Aluminum Beaker Oxidation Test (ABOT) is a small-scale oxidation test for automatic transmission fluids. ABOT is a bench oxidation analysis of automatic transmission fluids, in which the fluid is oxidized. A gear pump immersed in the beaker circulates and shears the test fluid.

External heaters maintain a fluid temperature of 155^oC (311^oF) and external air is pumped into the gear pump. Fluid samples are drawn at intervals throughout the test and at the end of test and analyzed for products of oxidation. Metal catalysts are submerged in the fluid to evaluate a fluid's tendencies to attack metals commonly found inside a transmission, such as lead, copper, and aluminum.