Nope, YOU have to pay for it. An all but unnoticed provision in the Moss-Magnusson Act you're referring to disallows the "free supply" when a proprietary part or fluid is required in order to maintain warranty provisions IF THERE ARE NO OTHER SOURCES FOR IT. As an example, Ford, to its credit, has licensed other ATF formulators to manufacture Mercon V fluids. You can even get SuperTech Mercon V at Wal*Mart, now, for $2.99/qt. If Ford now tried to confine their owners to genuine Motorcraft Mercon V ATF, then they'd HAVE to give it to them as your interpretation of the Moss-Magnusson Act stipultates. In other words the company cannot mandate that you buy a part or fluid from them if an equivalent part or fluid is avialable elsewhere. (something to do with the notion of "freedom of choice") DaimlerChrysler's position in this ATF+4 matter is unconscienable in my opinion, but, they do have the law on their side since THEY'RE THE ONLY GAME IN TOWN FOR ATF+4. (something to do with "capitalism" and "patents") Pray that DaimlerChrysler doesn't buy the Allstate Insurance Company. If that ever happened, you'd really find out what the "Good Hands" people got you by...
Oh, and YES, ATF+4 is REALLY a different fluid from ATF+3, even though it probably smells and looks the same. And, even more so when compared with any of the various Dexron "flavors", Mercon, Mercon V, Type A, Type F, etc - ESPECIALLY Type F (NO friction modifiers). I would NOT recommend any of the niche brand "universal" fluids that claim to mimic ATF+4. They're NOT licensed, so you're on your own in the event of trouble. Chrysler's trannies had some severe problems until recently and ATF+4' additive package is the response that seems to finally keep 'em working properly. (Anyone old enough to remember the old Monsanto slogan - "Better living through chemistry"? That slogan was also popular during the Acid-Head/Flower Power 60's - about the time Monsanto dropped it for some reason...) I believe I read here at BITOG that DaimlerChrysler is now recommending ATF+4 as service fill for trannies that were originally designed for and filled with ATF+3. ATF+4 is a VERY highly friction modified fluid, and may also be synthetic or semi-synthetic based. Substitutions could be very costly in the long run. You could get some hard-nosed arguments if you were to file a warranty claim and there were indications internally that you'd used the wrong fluid. The dealer and/or the DaimlerChrysler area zone rep. would almost certainly demand to see receipts for ATF+4, too, before they'd agree to a warranty trannie rebuild or exchange.
[ September 15, 2003, 10:38 AM: Message edited by: Ray H ]