what do you mean by fluid change & flush???Feel like changing it? Go right ahead. There is NO downside to changing the fluid.
FLUSHING the transmission is another story, NEVER flush. It stirs up sediment that was sitting there doing nothing, and can introduce contaminants from other vehicles.
The horror stories about failure after a fluid change have nothing to do with the fluid change - The transmission starts to act up, the owner changes the fluid, the transmission inevitably fails, and the owner blames the fluid change.
So droping the pan & replacing the filter is better?The 2nd one is done externally by a machine hooked up to the transmission lines at a shop like Jiffy Lube etc.. They reverse flush the system. Pan is never touched, so filter is never changed.
I Messaged you.As posted, DO NOT FLUSH... EVER.
I'll say it again, it stirs up sediment that would otherwise just be sitting in there harmlessly, and there's a chance of introducing contaminants from the other vehicles that it's been used on.
Drain, remove pan, change filter (where applicable), wipe out pan, replace pan, fill. Absolutely nothing to be worried about.