For everyone with questions about your heaters and engines. Most manufactures state to fill the cooling system with antifreeze during cold climate storage. This does two things, keeps everything moist in the winter months and also contacts ant water tgat may be left in low spots in the block, heads, headers and heaters and keeps it from freezing. Since regular antifreeze is TOXIC I recommend using a RV winterizing antifreeze such as Camo it Walmart brand. Take the thermostat out and pump the antifreeze into the engine until you see it coming out of the exhaust. Usually a good sign that you got everything full. Try an antifreeze such as this.
http://m.acehardware.com//product/in...uctId=10753645
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