The drain should be on the bottom right side check out the diagrams below. As far as capacity, it will be based on if you drain the block. As far as an additive, do you have a leak and know where it is? Capacity is between 1 and 2 gallons, depending if it has a tow package, a/c and other options. The drain (if it has one) will be on the bottom of one of the side tanks on the radiator. Sometimes they don't have a drain and you have to remove the hoses to drain it. I don't recommend any stop leak additives at all, if there is any restrictions they tend to compound the problem. A/C Delco has a package of "conditioning" tablets for Caddy's that is a stop leak, I would use that if any at all. If it has an intake leak you are trying to stop, it should be taken care of as soon as you can, if it leaks internally it will mix water with the oil and can cause internal engine problems. This guide will help you service the cooling system with the location of the drain plug below.
https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars
Check out the diagrams (Below). Please let us know what happens.
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Sunday, November 1st, 2020 AT 2:53 PM
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