Castrol TRANSMAX Axle Long Life 75W-90

Worth knowing

This oil’s list of codes almost entirely repeats that of TRANSMAX Universal LL 75W-90, which has the same viscosity grade: API GL-5, MAN 342 Type S1, ZF TE-ML 05A, ZF TE-ML 17B, ZF TE-ML 19C and ZF TE-ML 21A. They differ in one line, ZF TE-ML 12B, which appears only here. The ZF 12 list covers the axles and wheel hub reduction gears of buses and trucks, and Universal LL has other classes in it, ZF TE-ML 12L and ZF TE-ML 12N; the letter in each ZF list marks a separate class, so for an axle that requires ZF TE-ML 12B, that letter is the one that counts.

This oil’s number in the ZF lubricant lists, according to Castrol, is ZF002142, and it comes in handy for cross-checking: on Castrol’s Ukrainian page 19C is given among the ZF classes, while on the Australian page the same line says 19A. The current class is therefore safer to check by number in ZF’s public lists. How to look the oil up there, and why a list number without the letter is only half a code, is covered in the article on ZF TE-ML, MAN and Scania codes.