Besides just regular oil change, i was wondering how many of you actually do transmission flushing and coolant flushing. I get different opinions, but some waill say its a waste of money and some say its crucial...opinions out there?? Which ones are the crucial ones to do??

 

If you're looking for a consensus, forget it: opinions vary as much as quarter mile ET.

Follow the recommendations in the owners manual.

 

+1 look in the servicing/warranty book, again i believe it is at 30000. If the book says to do it, DO IT. If not they could VOID your warranty.

 

+1

Don't do short cuts to save money. Take care of your Z.

 

Coolant flushes are cheap and necessary. Its the additives that wear down that end up leaving the block vulnerable to permanent damage, over time it will happen regardless but you do your best to minimize it.