Can you mix Ford coolant?
Consequently, is it OK to mix coolant?
The green and orange coolants do not mix. When mixed together they form a gel-like substance that stops coolant flow and consequently the engine overheats. There are some coolants that claim compatibility with Dexcool, but I would rather err conservatively and add what the system is supposed to take rather than gamble.
In this regard, what coolant does Ford use?
Motorcraft® Antifreeze/Coolant - Now Conveniently PREDILUTED Motorcraft® Premium, Gold and Orange Antifreeze/Coolants are now available pre- mixed 50/50 with deionized water. The 50/50 mixture helps ensure vehicles get optimal corrosion, freeze and overheat protection and minimizes possible mix errors by technicians.
It often can last five years or 150,000 miles. So it's a better antifreeze to use. Now, if you mix them--they are not supposed to be mixed--but if you mix them it's not like mixing an acid and a base and you are not going to have and explosion or anything like that.