Shell Spirax S6 AXME 75W-140

Worth knowing

Scania STO 2:0 A and Scania STO 2:0 A FS are different codes, and this oil’s list carries the first. The FS variant belongs to the related AXME 75W-90 and ADME 75W-90, both in a different grade, so this 75W-140 does not cover an STO 2:0 A FS requirement. The letter A in Scania codes means axles; gearboxes get codes with G, and there is none here, although the data sheet also names non-synchromesh gearboxes. It was formerly sold as Spirax ASX 75W-140. Approval number ZF004860 covers four classes from different ZF lists: 05 (construction machinery axles), 12 (axles and wheel reduction gears of buses and trucks), 16 (rail transport gearboxes) and 21 (tractor axles, combine harvester gearboxes, final drives). The article on ZF TE-ML and Scania codes shows how to read such a number.

Two more data sheet figures can be set against the SAE J306 limits. Dynamic viscosity at -40 °C is 135,000 mPa·s against the 150,000 mPa·s limit for 75W; after the CEC L-45-A-99 shear test the viscosity at 100 °C falls from 24.5 to 24.3 mm²/s, still above the 24.0 mm²/s floor of grade 140.