Radiator flush Coolant ratio question.

So I'm flushing the coolant system but have a question.

If I:
1. Drain the radiator
2. Add Distilled water and run the truck so it circulates.
3. Drain again
4. Add distilled and do another flush.

yada yada yada

it calls for a 50/50 mix i know. but it also says that the engine block contains about 50% of the fluids. So if I do these flushes with distilled water that means when I go to fill it with the 50/50 mix I need to take into account that there's the distilled water in the block still.
Meaning that the mix I put into the radiator should be closer to a 75/25 (Coolant/water) so that when it mixes with the rest of the water in the block it will be 50/50.

Yes? No?

 

1. Drained 2. Refilled with 50/50 3. Done

 

fuck it.
okay cool.

 

If you are flushing with distilled, I would add the 50% amount of straight coolant, then top off with as much distilled as needed. Also, draining the block is pretty easy, just need a few extensions.

 

At some point, you need to flush with 50/50 and run it until it cycles to get the distilled out of the block. And of course, continue to let it cycle to burp/bleed the system to get the air bubbles out. By that time, you should have all 50/50 in the system.

 

I have read many angles on this so far. Some say drain and fill, some say drain, fill, run the engine, top it off and repeat.

Anyone got a link to a write-up on flushing the coolant? I just need a solid method for this.

 

I did
drain, fill with distilled
run for 10 minutes
fill with coolant.

went to Moab and all just fine.

 

how many times did you flush with distilled?
did you use a radiator cleaner?
how did you slove previous issue about water in the block?
i'm doing this in the am. Thanks

 

Take a look at this link.VERY descriptive and helpfull.
Hey Brandon.
http://www.tacomaworld.com/forum/2nd-gen-tacomas/88414-correct-way-drain-fill-4-0-antifreeze.html