my 89 Firebird 700R4 went 176k (until I had to retire it), no issues, drivin like it was stolen, transmission filter changes only every 4 years with valvoline durablend.
1992 Taurus, has 223k, original transmission, and yes, I've seen the records to prove it hasn't been rebuilt/replaced. Without Red Lubegard, the transmission slips in every gear, everytime. Transmission fluid still needs another flush. But it shifts smooth and runs well on leftover hodge podge of valvoline and mobil dex3.
friends now retired 85 Camry, 157k, engine lost all compression, transmission had the gear drop sound, but hooked up everytime with minimal services.
friends 02 Altima, this Jatco transmission has been to [censored] & back.
130k, has never been touched. The fluid still looks pink-ish, but shifts rough and doesn't hookup all to well. But I'm impressed with it.