Join Date: Jan 2001
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Re: my new truck
if i were doing it whcih i have before and do on a regular basis at the shop, I'd get the prestone flush jit adapters for garden hose) and flush per their directions. at that point you have clean water i nthe system. then I'd add a chemical flush kit Zerex makes a kit that works quite well. let this chemical run in the coolant for 15min or so. then once again flush out with nothing but water. at this point you will want to drain the radiator and bl9ock if you feel motivatied. i always just open the petcock on the radiator and then blow air through one of the heater core lines. this will flush most of the water out of the system. i add straight greencoolant to this mix. i run my mix rich figureing that if i ever do have to add to it. water is more available than coolant. i dont have the capacity guide with me, but this will likely goiveyou a 75/25 mix. that what I'd go with. but a lot of folks say never to go stronger than 50/50 mix of coolant and water. I've beenrunning from 80/20 to 60/40 for the last ohhh decade or soand have enver had problems.
either way, that part is up to you.
good luck. if you need more info just post up and I"ll reply