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antifreeze ?

goforbroke

Well-known member
Lifetime Membership
So I put on a PA head and the antifreeze I removed was contaminated, so I need to replace. Headed to trusty walmart, and nothing was green. Every antifreeze said safe to add to any color, but just checking what is best?

Thanks.
 
PEAK shoud still be green. Factory fill is 50/50 ethylene glycol mix. Pink ethylene glycol is supposed to be the same and also compatible. If you get most of the green out, it won't turn to brown.
 
yes if you change colors make sure you flush it completely, this means not just draining it and adding the new. what i do is lift the sled from the rear, i use an engine hoist, then pull the coolant hose from the front bottom of the engine. remove the fill bottle cap and then remove the bleeder screw from the top of the head. then take a air hose with a rubber tipped nozzle that will fit in where the bleeder screw goes and blow air through the system until no more antifreeze comes out. this will push most of the antifreeze out of the engine and tunnel section. set the sled down, just push the bottom engine hose back on its connector and fill with water until it starts to come out the bleeder screw hole and do the process all over again until the water comes out clear. then blow it out one more time with the air and add your new coolant. usely takes 4-6 flushes. you will need to run the sled several times up to temp. to get most of the air bubbles out, i also leave the filler cap off overnight and fill it again the next morning. would suggest the first time you ride it after a flush and fill take it out for a quick 1/2 to mile run and then check your fluid level again. do this until you don't have to add any antifreeze...
 
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I prefer to use a wet/dry shop vac. Pull as much out as you can, then either let it set for a while and the water will settle so you can pull more, or just add fresh water and repeat.

I start by vacuuming through the overflow bottle with the bleeder screw cracked open. I have torn down a couple engines after doing it this way and there was barely any coolant left in the system. With the fresh water cycles in between, you should have a pretty clean environment to refill into.
 
Thanks for the reply. I'd rather not flush the system so I'll try an auto parts store or Polaris dealer. I had some, just not enough. Pain to purge the air. I remove the little plug above the thermostat and I get air and coolant puking everywhere. going to park it on a hill with engine up and warm up to temperature. See if that works.
 
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