Blanket response for all y'all above me.
I called the dealer and verified with the service writer that 1.) the coupon was for a machine flush, included all fluids necessary. 2.) gave her all the particulars of the car, engine, trans, and ESPECIALLY the fluid. Made her CALL ME BACK with the availability of the 12 qts of sph-iv. 2.) verified price of service with the requisite fluid 3 times: 1st phone call, second call when she called me, at service desk when presenting the coupon.
I'm a nuke worker with a heavy background check. Can't afford to get in any altercation at all. I was angry enough to punch someone, so I had to back off and capitulate.
I did call Hyundai, and the dealer called me (sounded like the sales side). Now I begin with the forums and BBB, angies list, yellow book etc. I gave both calls all the above. Nice noises were made but no substance so far.
The two pints of BG fluids "6600: BG Trans Flush Kit (which were a flush and a conditioner) cost me $40.50 Undoubtedly there's plenty of dealer markup there.
Labor was $57.45. The young tech looked floppy and frazzled but was knowledgeable and courteous.
Tax was 32.95. We have no state income tax so the sales tax is over 10%.
SPH-IV was 19.16 x 12 = 229.45
What really [censored] me off was the "service manager" denied me the right to ask Donna Pettit the service writer that I had verified the cost three times. He accused me of trying to get something for nothing. And refused to tell me anything about the bulk tank fluid besides that it was "synthetic, red, had never caused any problems in a trans", albeit there were 6 reman trans laying in the service bay... The guy was combative and asked a number of times for me to get out of his shop if I wanted something for nothing.
I guess the 149.99 was for a bulk fluid swap with no bg kit and no tax added till the end. They never would tell me exactly. I just got the h out of there before I punched somebody. I was getting loud and demonstrative, but it was doing no good.