Acura Dealer has done all the service on this car 07 RL Tech - depaxed - approaching 90K - what should I pay for 6 spark plugs - and what else should be performed at that time. Timing belt and water pump done.

 

You should do the spark plugs yourself and pay for parts only.

 

OP is 72, I'll cut him some slack

I think the dealer would charge about 100$ in parts, possible two hours of labor, three at most. Ballpark figure of about 300$ at an Acura dealer.

 

I would NOT do the spark plugs yourself because karma will ensure that one of those coil packs will break coming off and that is a PIA.

Be prepared to pay for a new one of those as well.