So you say you’re still removing plugs, disconnecting hoses, etc. to drain cooling systems, and going through all sorts of operations to refill them. Are you still putting yourself through these contortions, even after all we’ve told you about the difficulty of getting a good fill on late-model vehicles? We’ve gathered some additional information on the subject since we visited it in December (“Brrr … Humbug”), and it may prod you to consider the purchase of cooling system drain and fill equipment.