2004 331 coolant change

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xkvator

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Joined
May 30, 2006
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1
the manual says it holds 4 gallons(16 quarts) ive drained the coolant...petcock on bottom of radiator...valve on engine under injector pump...and took heater hoses off and let hang below engine...but I only get about 10 quarts out... ive refilled with distilled water a few times to clean...ran and waited to cool...drained and still only get 10 qts… if I put in the PG Pre-mix, i'm afraid the 6 qts that didn't come out will dilute it further... any thoughts on getting all the coolant out...??? should I get a gallon of Sierra full strength, and put it in, then add the Bobcat pre-mix?
 

foton

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Mar 1, 2018
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1,348
do what you can to get the 50/50 mix as close as you can but do not completely fill , then pick up a coolant strength checker( I think most parts stores have them) and test your coolant then adjust if necessary and top off.
 

mmsllc

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Joined
Dec 29, 2015
Messages
715
do what you can to get the 50/50 mix as close as you can but do not completely fill , then pick up a coolant strength checker( I think most parts stores have them) and test your coolant then adjust if necessary and top off.
I would think that as long as you can maintain a 30% to 70% ratio of coolant to fresh / distilled water, you would be just fine. I understand that 50% / 50% ratio is ideal, but 30% / 70% is within spec as far as being concerned about iron & aluminum components are concerned.
 
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