No, you really should be using red ELC.
In vehicles that require green, yes.
It's probably not a good idea. The "permanent" antifreeze has different characteristics and is designed to help the cooling system perform better and last longer.
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.
If you mean CLEAN antifreeze, the answer is no. Hydrometers are used to check if still OK. Also a good idea to flush radiator and add new coolant twice a year, in spring and fall.
it is not reccomended to mix orange coolant with green. it will harm cooling system. only use dex-cool or the correct brand. call dealership to see if universal coolant is ok!!
you can change it to green, however, the "green" antifreeze will corode your radiator, water pump and anything else that is alumnium in your cooling system. Also, while dex-cool may seem expensive now, you dont have to change it as often as the green which will save you money in the long run
NO Absolutely will not hurt anything, just be sure to change it every 2 years as recommended for standard ethylene glycol based coolant.
It is ok for a short time but you need to get a 50/50 mixture back in it asap (50% water & 50% antifreeze)
Is it ok to have green stool.
Use a HOAT (Hybred Organic Acid) coolant. Zerex G05 is a good one as is the Fleetguard Compleat EG. Do not use an OAT coolant like DexCool. Of course you can always get the right stuff at your Dodge dealer and the price is competitive (at least in my area). These coolants do a better job protecting the aluminum and what not in modern engines. For the original Hemis its best to use the original IAT (inorganic acid) green coolant thats been around for years. This would be like the original Zerex, original PEAK and Fleetguard heavy duty should be OK too. These use silicates and phosphates as the main corrosion inhibitors. Don't rely fully on color as it not universal for each type- though as a rule most green colored coolants should be OK for older engines and the yellow colored ones OK for newer engines.
They are OK engines. I would say that Yamaha engines are the best though.
OK, find the leak and repair it.