afomenko

Well, it does not smell good at all, considering that it's being only 18K miles from last transmission fluid change. I would use an additive for old transmissions which claims to restore viscosity and reduce slip - I used "Slick 50" I believe, with good result - it really helped with gear kick-in and with slip. It helps to extend period before repair, but of course does not cure a cause. Still, worth a try for few bucks.

I forget to buy this washers each time too, but I have use another trick - when you take plug out, clean it and put a little bit of silicone gasket maker round old washer, let it dry while you still draining the oil, then put it back. Worked for me many years with no leaks