So a few weeks ago I added a tranny cooler, and since it was overdue for a fluid change I went ahead and drained it completely. This was just a drain and fill, not a complete flush, so the torque converter obviously didn't get drained out. The fluid that came out was still bright red, clean and didn't smell burned at all (impressive considering it'd been I think close to ten years since I changed it last). I planned ahead and had ordered three gallons of Shaeffer's All-Trans from Amazon after reading about how great it is. I have to say, after driving with it the last 400 miles I'm very impressed. My transmission shifts smooth as silk, when cruising on the highway it feels like it's not working nearly as hard to maintain speed, and most notable was that in the last two full tanks of fuel burned commuting to and from work, I got 14 MPG, up from an average of 11-11.5 MPG. I can't speak to whether the Schaeffer's runs cooler than the Mobil 1 I was using before, since it was drained to add a tranny cooler, but performance wise I'm very surprised. This was the only thing changed that could affect driveability and economy. The rest of the work I did at the same time was radiator replacement, headlights and horns. I still have a gallon left after filling, so I'll be ordering another gallon to do another drain and fill in the next month or two to completely flush out the old ATF. I highly recommend spending the money to use this stuff next time any of you drain your A440F. I'm in no way associated with Schaeffer's. Just a very happy customer.
Can't wait now to get a Nomad valve body in and have it run even better with that installed. It's on the short list of stuff to save for now, since my tranny is showing no signs of age, even with almost 300K miles.
Can't wait now to get a Nomad valve body in and have it run even better with that installed. It's on the short list of stuff to save for now, since my tranny is showing no signs of age, even with almost 300K miles.
