Hyundai Dealer added 'auto trans. cleaner' during the trans. fluidflush (???)

Does this sound right ? What kind of cleaner do they use ? Ive
never heard of this being done in the past. Thanks.

 

In most cases, dealers (and other shops) reach deals with additive
companies. Additive company supplies flushing equipment free of
charge if the dealer uses their chemicals.

Doesn't sound very good to me. In most cases, the additive company
doesn't list the chemicals in the cleaner. Therefore, there's no way
to determine whether they can potentially harm the transmission. Even
if the chemicals were listed, there'd likely be no way for the typical
mechanic to determine the consequences from using them (other than
wait and see). There's no reason anything other than SPIII fluid
should ever be put in your transmission.

 

I think you are confused. It does not actually clean your A/T, it is a line
item on your invoice that is designed to clean out your wallet.