Also +1
Everyone to their own decision, but surely, if you feel you need waterless coolant on a Morgan, then there is a fault in your car's cooling system?
I replaced a 12 year old MMC radiator on my 4/4 (OK, not an Aero) 2 years ago.
A Mulfab was fitted by Berrybrook and the cooling system flushed.
All previous issues solved.
