well even the worst WE CAN BLEED IT OUT BUT IS TEDIOUS.
bubble always float up (rule1)
so we open up the highest hose in the coolant loop.
and put a funnel there.
my old jeep was one of the hardest on earth to do.
The silly jeep book manual says jack front of car up 4 feet, wow.
dead cold engine never hot. (generic first)
1: rad cap off
2: leave it off and add coolant dead cold only and add 50%AF
until fully full,
3: key on start engine (2 persons best) and 2nd adds 50%AF as it drops and 2nd person says ,STOP and I key off, ( engine run less than 5min or if rad neck cap off shows fluid starts to overload. we Stop;. ( I chock front wheels doing this) go easy run short times engine , not long, avoid natural engine heat , even 30second runs at first. OK done, it is now expanding, AF>
4: cap back on off, and still cold (ish).
5: now the remainder, (air pockets)
6: is add a funnel to end of one TOP hose. and hang the hose off the top hood latch loop (small rope ;twin)
then fill it up to full that hose. with 50%AF. and start engine
maybe 10 times or less until it will not take any more AF !
run engine say 1min max each try. ok its fully (cross fingers)
7: Ok done here.
8: now fill side bottle 1/2 full. AF
9: LAST , EVERY MORNING CHECK LEVEL AT THE RAD CAP OFF
AND ADD AF EACH TIME. EACH DAY UNTIL NO MORE DROP
---------------------------------OR SKIP ALL THAT----------Grin----------
AND USE THE VACUUM WAY.
WE HAVE SHOP AIR AND WE HAVE THE VACUUM, PRESSURE EDUCTOR DEVICE FOR RAD FILL.
IT SUCKS THE NEW AF IN TOTALLY ALL AT ONCE.
ADAFIRST Coolant Vacuum Refill Kit, Cooling System Radiator Vacuum Purge & Fill Tool Kit