I changed my fluid and added some Lucas, but it didn't help. Later, I took the return line loose at the tranny and let it run for a few seconds at a time to drain some fluid. Added a whole bottle of Lucas and it seems to have helped a little. I'm tired of spending money on this car, so I'm going to drive it 'til it gets unbearable, than I'll go back to 'old faithful', my 78 El Camino with a stone age, reliable TH350.