Re: Transmission fluild

Posted by Jim L. in OR On 2012/9/16 23:40:01

I've been running type "F" in my '51 200 Deluxe for a year and a half. While the upshift (lock-up) and downshift were quite noticeable in the beginning after about 1,500 miles the transmission does it's job without anything more noticeable than a change in exhaust note pitch.

I was so pleased with type "F" that during my 55's re-awakening after 25 years of slumber I told my mechanic to use type "F" when servicing the it's transmission - dropping the transmission pan and draining the torque converter, etc. I recently learned they couldn't get type "F" so used type "FA" instead. After 250 miles the 55's transmission isn't as smooth as my '51 but it's way better the way it was at the beginning and figure I can't say anything for sure until after 1,250 more miles - which I'm adding quickly.

However, I haven't heard anything about type "FA" so if anyone knows anything bad about it PLEASE let me know.