Yes...remove your water filter before you add antifreeze. It's a simple process. When you run the antifreeze out of your faucets, make sure enough gets into your p traps (kitchen, bathroom sink, shower. Drain your low water drains.
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Chuck and Joanne
2014 Flagstaff Super Lite Classic 27RLWS Emerald
2013 Dodge 2500 4x4 Laramie Crew
Equal-i-zer 1200/12,000 4-point WDH