Hey guys I need to increase the ratio of coolant in my system to protect it for winter storage (getting a jump start). Now if I open the lower valve on the rad (petcock) and allow it to start draining, then while draining...add coolant to the rad untill I have added apporox 3 quarts of coolant, do I need to burp the system..??I HATE burping the system..always make a mess and takes me forever.