Doing coolant flush right now.
I am referencing several tutorials on the website:
1.
Official Coolant Flush Guide
2.
https://www.youtube.com/watch?v=oQsxmi-CNng
3.
How To: Coolant Flush - PICTURES!
Everyone of these people are able to get around 8 qt out of the system. I am only able to get 4 qt (1 gallon). Not sure what is going on.
The process for drain and fill is pretty straight forward: drain old coolant, refill with distilled water, drain distilled water 3-4 times, refill with new coolant mixture.
The car is 2010 4Runner Trail Edition. I have flushed the system this way with around 4 gallons of distilled water and refilled it with 50/50 coolant mixture. The concentration is very alarming right now.
Why am I able to drain only 1 gallon every time, whereas others are able to drain 2?
Thanks. Any help would be appreciated.