coolant system flush while replacing radiator

Yeah there are two different types of coolant toyota long life coolant (red) needs to be 50/50 mixed and toyota super long life coolant (pink) pre mixed. Easy way to tell besides the label is the long life has a red cap and the super long life has a yellow cap. Most of the problems we see are leaks. I don't know what the reasoning is but it seems like the pink stuff is more corrosive and finds ways to leak out of the cooling system

 

OP - Any good tips since you just did this recently?

What did you end up doing with the coolant/water coming from the upper hose?

 

Sorry to hijack a bit but I'm about to do this.

I need to change my upper hose because it's leaking. I'm assuming I should do this first before I do the flush? Any reason not to change the hose first?

 

You really love your truck.

 

Wow 40 gallons of distilled water?

Basically after an entire frustrating day of trying to get water to circulate and having it not circulate, just steam. Which meant it was boiling...I ended up just disconnecting the upper hose and than opening the engine drain block and flushing it that way. Put the hose in and set the water to a good flow that doesn't over flow but keeps it full and let it all just run out the block drain. I replaced the radiator so I didn't meet to worry about flushing it but that's as easy as doing the same process but through the radiator and out the radiator drain.

Now I do not know if that was the best possible way but it was running clear. I imagine though if you wanted to remove the thermostat and re install the hose than flush through the lower hose or through the radiator and the lower hose than out the engine drain also that would work, but than Finnish flushing the block from the top. But I was tired of dealing with it.

 

Gotcha, cool thanks.

 

Heater isn't hot when flushing with water. Typical??? Assuming I need to put the coolant in and burp the system.

Also, 5vz-fe takes 10.1L of coolant mixture per the manual. 1 gallon of coolant is 3.78L which is not enough to make it 50/50... am I thinking correctly?