Back in the day, when we would flush the system. After flushing (a few times with distilled water) we would assume that the amount left in the block was the same as that had drained from the petcock so he would just put staight coolant back in (not 50/50) because it would eventually all mix together and be pretty close to 50/50. Any issues with doing this with my 2012 Hemi?
Yes, but in this case as when we did it back in the day, if you just drain from the petcock you are not getting the water in the block. So if it takes 2 gallons to refill with a 16 quart capacity that is as close as you are going to get to 50/50.
Right?
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