Subject:	Cooling system
Question:	Car had basically run out of coolant (no leaks found) I assumed either the radiator cap or thermostat were faulty allowing the water in the block to boil away untils a low coolant condition came up. I am now in the process of replacing both the thermostat and cap with new parts, but would also like to replace anti- freeze. (This is Wisconsin after all). My daughter, the owner of the car has misplaced its owner's manual so I need to know; Does the attack I'm taking sound like a good one? What is the coolant capacity? I should go 50-50 w/anti-freeze in this area, but need to know how much that is. Can you help? We are talking about a '92 Mitsubishi Eclipse 1.8 liter 4 cyl automatic trans
Answer:	David, Changing the thermostat, radiator cap, etc... is a good start; especially if they've never been changed. Even though you see no leaks, you may want to check for any water around the water pump. Water pumps on Mitsubishis usually go out every 7-10 years. Your engine takes 6.6 quarts of coolant mixture. Typically, a 50/50 coolant/water mixture is good, but for Wisconsin climate, you may wanna go 60/40 or even 75/25 anti-freeze/water mixture. The problem with the boiling now could either be from too much water (not enough anti-freeze), a stuck thermostat, a clogged hose, or possible clogged radiator. Hopefully, it's one of the first two. Those are the cheapest and easiest fixes. Good luck!