Green coolant vs. Red coolant

[FIDO96]

I wanted to run T-red so I had my local dealership do a pressure flush and refill from green to red. Had to pay for 7 gallons. 3 to flush and 4 to fill. Is this the correct way to do it?

 

[Chuck Steak]

I wanted to run T-red so I had my local dealership do a pressure flush and refill from green to red. Had to pay for 7 gallons. 3 to flush and 4 to fill. Is this the correct way to do it?

Probably. No doubt they flushed all the green out with water before introducing the red. My problems came because the coolants mixed....