MIL - American military specifications
Transmission oils
MIL-L-2105
If an oil is to correspond to this specification, it must be a product which has been tested and found to satisfy certain clearly defined demands based on full scale tests. During the tests, checks are made concerning separation, foaming, corrosion, oxidation, bearing capacity and miscibility. The specification concerns primarily final drive oils.
MIL-L-2105B
Development in the motor vehicle industry has resulted in the fact that more and more power is being transmitted through the final drive. In order to meet this, more severe demands must be made also on the lubricant. in 1962 specification MIL-L-2105B was issued and according to this specification oils are subjected to tests which are in the main identical with MIL-L-2105, but with more severe demands.
MIL-L-2105C
This specification came into existence in order to be able to apply MIL-L-2105B to 1970's double and multigrade oils such as SAE 80W/90, SAE 85W/140 etc.
