As in most "absolute rules", there are always exceptions. For instance, some cars did specify automatic transmission fluid in the power steering, in fact most of them did until sometime in the 60s. Your owner's manual or FSM will tell you what fluid to use. Also, type "F" fluid WILL induce firmer shifts in some transmissions (the Borg-Warner, Warner Gear, and Ultramatic transmissions, for example), and so if you have such a transmission that is about at the end of it's life due to slippage on shifts, you may get a few more miles out of it by changing to type "F" fluid. I don't know about Mopar transmissions, but I'd guess that the same physics may well apply there also. On the others, I have done it and it works. The type "F" fluid has different friction modifier additives, and it makes the clutch packs, bands and direct drive clutches engage with less slippage, at the expense of more shock to the driveline. Dick Benjamin ----- Original Message ----- From: "William Herbert" <Willbarc@xxxxxxx> To: "Imperial" <mailing-list@xxxxxxxxxxxxxxxx> Sent: Tuesday, December 17, 2002 11:08 AM Subject: IML: Myths..auto that is. I wanted to bring up the subject of "myth" repairs. If you have been a car nut very long you probably know there is alot of BAD car advice out there. At least as far as repairs go. I think this forum would be a good place to list..all the NO NO's Just to list a couple BAD IDEAS and myths 1.You can use transmission fluid as power steering fluid. 2.Type F transmission fluid in a Mopar automatic for "firmer shifts" 3.Form a gasket.... you don't need a gasket!{ya right} 4. Transmission fluid for a quick shine on your paint. 5. Bondo to fix rust holes. 6. Primer is good enough to last until you "get around to painting it" 7. You can weld a gas tank..just fill it with water. NOT! Who has got their own? What bad advice have you been given and rolled your eyes..or even WORSE..tried.