I think you are referring to Dave Quay at Atlanta Stuttgart. Since sold to Potomac German Auto Parts. I have replaced the radiator and refilled with MB coolant. The price differential is insignificant. My only comment was that Though I am not a chemist I felt the green stuff appears to be overplayed. Is the ph content put in the same category as cancer causing substances that have to be consumed in huge quantities to cause cancer in rats and in even huger quantities in humans. Dont know. Often wonder. Just a little Sunday morning observation.
1982 380 SEL (Euro)
1986 300E (Euro)