My tranny has over 215,000. Shifts smoothly after warm-up.
What conventional Dex-Merc fluid and treatment does Mercede-Benz recommend?

 

Former owner used Lucas in the fuel. I use antigel in hard winter or it won't start.
Might consider synthetic tranny fluid, but my rings are worn so I won't use synthetic oil.

 

I use Power Service antigel in the fuel or it won't start in very cold temps.
I use Rotella & Lucas in the oil. Engine has 225,000 miles.

 

Does Mercedes warn against using Lucas? What does Mercedes suggest?
I use conventional Rotella 15w40 in the crankcase. What does Mercedes suggest? Does Mercedes have a product similar to Motorkote? (I haven't read any warnings about Motorkote, like the warnings about Slick 50, PTFE, etc.) My engine has over 215,000 mileage, so the rings are worn but I have very good oil pressure. A light-blue smoke at start-up. Less afterwards.