Yup
you pay to play. Automatic transmissions are expensive ----- FACT!!!
Have you ever priced out ZF 8 spd ATF? - it sells for 25 dollars a liter, one drain and fill takes 6 litres and requires new transmission sump too.
full flushing that transmission means you need to buy 15 litres of that ATF. Most people think we are joking when they hear the price quote.
You own a truck that takes cheap ATF Dex3, Its the cheapest ATF in the market today - and you are thinking that a flush is expensive - LOL.....
HAHAHAHA
Want to know whats expensive?? a failed transmission is very expensive to rebuild with new parts (not shit scrapped parts)