I drained the radiator earlier today after a forum member suggested it as an alternative to a complete engine coolant drain. In total, 2250mL drained directly from the radiator. However, I only managed to refill with about 2050mL. I used a Lisle funnel and opened the radiator bleed port, vinyl tube attached, to assist in the fill ( I closed the port when fluid started coming into the tube). I also turned on the ICE and cranked up the heat for 5 min, but still couldn't get the last roughly 200ml of coolant into the system. I then took the car for a short drive and after it had cooled the water level in the radiator neck had gone down an inch so I topped it off, but I'm still likely at least 150mL short of the total amount of drained coolant. So what's the best way to proceed? Should I just keep checking daily and top it off when I notice the level is low? Does the system self bleed while just driving? Otherwise should I reattach the Lisle funnel, fill it up with an excess of coolant, and try bleed the system by running the ICE for a longer period? I could also run the CHRS pump using a multi-meter... just not completely sure of the best route at this point.
150ml is nothing. If you insist on getting every last drop back in, just check it every morning, fill to the top of the radiator. If you do this for 3 or 4 days, you should be able to get everything back in
