no man can answer that, there is a dry system spec, that you will NEVER achieve until you install a new engine.
engine size not even stated.!! ill guess.
9.8 QUARTS fro 1MZ-FE engine.
my guess, this is first time, doing this?
buy 50% premix, and stop when full?
or mix 50 % in a bucket,
- put 1gal in a bucket and at 1gallon of pure AF
- bingo 50% in bucket
- pour in to rad. burp system.
- repeat 1 and 3 till full.
on my 2 v6 engines, that hold about 15 quarts (non,toy)
i can not get the last 5 quarts out of the block , (block drains covered
by engine mounts.
(i measured my drained output carefully)
10 quarts cam out , (its not a Toyota , its a JEEP )
so i flushed the engine block with fresh water.
so now its, 5 quarts of fresh, water there (i do that so no craap remains the block or old wrong coolant etc..)
then i close up and put in 1 gallon of pure AF.
i now am close to 50% in the block. 4/5 is close enough.
and add 50% mix to top off.
i have a fancy , gauge that measures % , and make sure im at full protection, 50% at end and next day.
thats how i do it..... and done so for 50 years. im retired.
in a shop , it's a fancy machine that does it all.
some engines drain 100% others dont
the 1st time measure output if not 9.8 quarts. bingo, do the math./