DIY: Transmission Oil Change

dkmura

Testing in bulk is about $28, but cost is not the primary reason to do it. It provides a snapshot of the overall health of a component, like an engine or gearbox. It also let's you know whether a particular product is working well for that application.

In my case, my Z gearbox is in pretty good shape, considering the heaps of abuse and heat it gets subjected to in racing. MT85 is doing a good job preserving the primary parts like syncros, main shafts and other seals that would otherwise need a teardown to determine.

And yes, it's still cheaper to do a UOA than "just change the fluid".