Hi all, I recently purchased a 2014 with 62K miles. Not knowing the history, I changed the oil and CVT fluid and filters. Next I would like to flush and refill the coolant. The current coolant is green in color, is that the color of standard Mitsubishi coolant? Is the OEM coolant the best to go with? Also I read there is a water jacket drain plug in the block, where on the block is it. Thanks