Originally Posted By: gr8gatzby
If i drop the extra coin for the RP/RL/M1 Full Synthetic could I hit it and forget it for the next 150k?
I would say no.
A synthetic ATF is no majic elixir.
Clutch disc/clutch plate wear, bearing wear, and gear tooth wear all contribute to the particle load in ATF.
In addition, oxidation degrades an ATF.
Transmission longevity, in my view, means changing fluid (pan drop and refill) and filter every 30k miles.