First time I can ever recall someone saying that changing a fluid "too early" is BAD for your vehicle.
In this case Toyota's Transmission Fluid at other than 60K miles or more. Author's theory is that you need the bits of
clutch debris floating around to help your transmission shift without slipping is a necessity. Change it too early and you
don't have enough "helpful" debris available to shift those clutches, hence more slippage, and then an earlier end of life on the trans.
This is independent of the car's mileage. Really???
So my 2001 Lincoln Continental (FWD) is known for having an under-powered "6 cyl Taurus trans" (AX4N) that do tend to
fail somewhat early on. Factory recommended fluid changes are at 30K which is probably fine for highway cruising. I had a highway cruise Lincoln AX4N that I changed every 25K miles and took it well over 200K miles before the engine died. But, what about cars doing mainly
shorter trips and stop and go around town, frequent auto transmission shifting..... that is much more severe service on a transmission? Per the author, changing the fluid early at say 15K to 20K that would be significantly shortening Lincoln AX4N transmission life.
That's a new take on trans fluid theory that I've never heard before. So here I was planning on doing my next trans fluid change at 20K miles
to avoid any risk of overly oxidized trans fluid......and now it's supposedly the wrong thing to do?