4 quarts per gallon

mixed 50/50
2 gallons dex + 2 gallons water = 16 quarts

 

I drained the block the last time I replaced the oil pan gasket. It was easy because I jacked the motor up off of the motor mounts. Try jacking up the left side motor mount only and you should have enough room to get the plug in and out easily

 

use distilled water only for water part of your cooling system

or if you have a reverse osmosis water purifier, just as good

 

To flush the overflow reservior all you have to do is take out your battery and remove the 1 or 2 bolts holding it down. It should come right out making it easy to clean