If changing the fluid ruined the tranny, it needed to be rebuilt anyway. If the wrong fluid was used, changing it to the correct fluid should take care of it, as long as it wasn't driven much. I am not sure how this got started, but I have never heard that changing the fluid will ruin the transmission. Leaving fluid in for too long after it has been hot can cause problems, but these problems should not be made worse by servicing the unit. One of my Imperials had a bad tranny when I bought it. The car had been overheated while pulling a trailer over the Grapevine. The owner drove it until it quit. The engine was ruined, but was made to run. The transmission was cooked. I had the engine rebuilt, and managed to keep that old tranny going for two more years by having it serviced frequently. Finally, it would no longer go into reverse, or high gear. While it was sick, the fluid would turn dark every 5,000 to 10,000 miles. When that happened I would change what I could without draining the torque converter. I'll admit that this is an extreme case, I just don't see how changing the fluid could hurt the unit. After a certain number of miles, the transmission is going to wear out. It can only last for so long. Premature failure is usually due to lack of service or catastrophic events. Paul In a message dated 7/20/2004 1:17:44 AM Eastern Daylight Time, "Cliff Wilhelm" <ldangel987@xxxxxxxxxxx> writes: >The fluid was changed about 1.5 years ago when I got the car. It didn't have >any problems then. This would be the second change, only because the filter >was changed. > >I'll be irritated to find out changing the fluid is going to kill my tranny. > >.c. > > >>From: "jsadowski" <jsadowski@xxxxxxx> >>Reply-To: mailing-list@xxxxxxxxxxxxxxxx >>To: <mailing-list@xxxxxxxxxxxxxxxx> >>Subject: Re: IML: 67' Transmission Fluid & Slippage >>Date: Mon, 19 Jul 2004 12:40:56 -0700 >> >>You should be using Dexron or Dexron/Mercon. I would try changing it if you >>suspect that wasn't what was used. If the trans was a lot of miles on it & >>the fluid never changed, changing it could cause problems to start, even >>with the correct fluid. My daily driver Fxxd had 190,000 miles & I wanted >>to have the trans serviced. The service manager told me not to even think >>about it. Doing so could potentially kill it on the spot was what I was >>told. My sister once owned a 67 polara & a mechanic friend told her pretty >>much the same thing. >>John >> ----- Original Message ----- >> From: c.wilhelm >> To: mailing-list@xxxxxxxxxxxxxxxx >> Sent: Monday, July 19, 2004 11:24 AM >> Subject: IML: 67' Transmission Fluid & Slippage >> >> >> I just have a quick question(s).... What is the recommended transmission >>fluid for my 67'? (I only found notes on a '58 in the archives). >> >> Recently I had my transmission filter changed, and now I have noticed >>some slight slippage under harder acceleration? I am assuming it's the >>fluid, as I never had slip before...? >> >> Thanks, >> .c. > >_________________________________________________________________ >Planning a family vacation? Check out the MSN Family Travel guide! >http://dollar.msn.com > > > >----------------- http://www.imperialclub.com ----------------- >This message was sent to you by the Imperial Mailing List. Please >reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be >shared with everyone. Private messages (and attachments) for the >Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx >To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > >