Well, your antifreeze kept your engine block from freezing and cracking last winter. How should you reward it? How about giving it a physical examination and, if it isn’t up to snuff as a coolant, having it replaced. That might not seem entirely appreciative but it’s probably the smart move. The liquid in your radiator is supposed swing with power from both sides of the plate – in winter and in summer. Where baseball players take the winter off, however, antifreeze/coolant comes to bat year round. Without that opportunity to recuperate, it can wear down and go into a permanent slump. In other words, you may have no choice but to put your current antifreeze/coolant out to pasture and bring in a fresh player from the bench. There are inexpensive hydrometers in local auto parts stores that even a rookie can use to determine the ability of a car’s coolant to take on the summer ahead. Will it be a hot summer? Time will tell. For those who enjoy a little pointless risk in life, waiting to s...