does definitely apply to the Z-F automatics used in many BMWs and certain reardrive Volvo models from the '80s, especially their diesels. A whole lot of people began experiencing transmission failures right after they had the newer chassis dyno type smog control tests done in California and some other states, and eventually BMW traced down the nature of the problem and published a special set of procedures for "preparing" the car for the tests, which procedures basically consist of having it idle in neutral, rather than be shut off for some time before the test and then restarted. But to get the correct info, you would have to search at bimmer.org or brickboard.com (Volvo site).