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OhioGuy89 · 07-30-2013, 06:12 PM

So I'm changing the antifreeze in my '67 with a 454 in it. There was a little more than 2.5 gallons that came out. How much new antifreeze should I put in? Is 1 gallon of antifreeze enough for 1.5+ gallons of waters (40% antifreeze/60% water)? Or should I make it more 50/50?

07-30-2013, 06:12 PM	#1
OhioGuy89 Drives: 2012 LS Join Date: Aug 2011 Location: OHIO Posts: 121 View My Garage	Antifreeze So I'm changing the antifreeze in my '67 with a 454 in it. There was a little more than 2.5 gallons that came out. How much new antifreeze should I put in? Is 1 gallon of antifreeze enough for 1.5+ gallons of waters (40% antifreeze/60% water)? Or should I make it more 50/50?