Just finished adding Engine Ice: I went through the proper steps [flushing with distilled vinegar and water]. Everything seems ok. But I have one question; how much should a 2006 take? I was advised by the service department to buy (2) 1/2 gallons and to fill with 3/4 gallons. I was only able to add about 1/2 of one container. The fact that I was told to add one container and 1/2 of the second, I actually over filled a bit. Can anyone tell the volume of the coolant reservoir for the 2006 Busa’s?