Curly,

In an earlier thread about my wife's transmission you said I should get
a crush washer with the Honda Z1 ATF. What is a crush washer and why
do I need it?

Unrelated question: Why do service stations charge so much for
transmission fluid change when it is no different than an oil change?
And speaking of cost there is a Honda and Acura dealer near me, both
part of the same auto group. I have a gift card for Acura so will use
it for the ATF, but it is actually $2/qt MORE at the Acura dealer.
Again, same owner of both dealerships!

Eddie