No.
Not as simple as "No.".
It doesn't matter what color it is. It matters what base chemical it is. Ethylene Glycol or Propylene Glycol are your 2 choices. Use one or the other. If you have mixed the 2 different base chemical types, you will have to flush the entire system. What you will expect to see from mixing the 2 is a sludge build up on top of your water in the radiator. This is usually black, or dark gray. Gray usually only because after the separation process in the lubricants found in coolants, the 'oily" sludge will draw moisture causing the grayness.
Also, try to use PG (most of the time it's red) in engines/cooling systems that predominantly incorporate the use of aluminum parts. This will help preserve the seals and help against corrosion caused by electrolysis.
-BrokenShoelace
no
No you can not due to the properties of the two. Certain "red" antifreezes and "green" antifreeze combine and turn to "mud". Other "red" antifreezes combine with out any problem. You best bet is to not mix colors ever.
Silicate (green) type antifreeze does not mix with red type antifreeze. Never mix them in a cooling system, the organic acids in orange types will cause precipitation of silicates in the green type and corrosion protection is greatly reduced. Always use what is recommended by the vehicle manufacturer.
cuz then you will have Christmas anti-freeze
Only in an emergency
extended life "red coolant' Tell the people at the parts store and they will get you the oem coolant (do not mix red and green)
Make sure you use the red stuff as the green antifreeze tends to rot the oil cooler and causes other problems too. Do not mix them either.
A 50/50 mix of Green antifreeze and distilled water.
no.
Not recommended,
yes, but will dilute to the lesser quality of the two,and all color or any antifreeze can be added to other but will not replace it
If they're the same type of antifreeze, they should be compatible. You just don't want to mix different types of antifreeze (e.g., universal green, Dex-Cool orange, red, etc.).