about 1 gallon your owners manuel should have this info
Coolant recovery tank
your coolant tank should be on the pass. side inner fender
put a 50/50 mix of coolant and water in your radiator
GreenGreen
you add coolant untill it is full ?
The bigger your car, the more coolant you need to put in. The bigger your engine and car, the more coolant you need
The universal coolant is a good way to go if you are not sure which it takes. The 98 Saturn has a big colored dot on the reservoir, green or orange Here's my opinion. They make a universal coolant now, perhaps Prestone or some other brand. It claims it can be mixed with ANY type of coolant... if you're not sure what it takes, go with that. Take your time flushing your coolant if it looks like mud. You may have to flush it multiple times to get all the junk out. I bought my Saturn used. When I checked all the fluids my coolant was a browish color. I ask my mechanic he told me that who had it before put both green and orange coolant in it. He flushed it and put in orange coolant.
Have the coolant changed immediately and you will be ok.
The slimmer the better. Stock size works fine
Transmission sounds shot. Check ATF fluid.
under the backseat and you just pull it out and put a new one right back in
It isn't going to permanently damage it as long as you replace it with the proper coolant. NAPA makes an all types and models coolant that is compatible with Dex-Cool. Dex-cool just has additional lubricants in it that are designed for that system. If you use regular coolant the seals in the cooling system can break down much faster and cause leaks.