Pink Asian coolant in my bike?

6 replies to this topic
  • cowboyona426

Posted August 30, 2016 - 09:23 AM


Just wondering if there are any pluses or minuses to running pink colored Asian coolant in my 450FX.  Last time I rode it boiled over a little, I have almost a full gallon of the pink stuff ready to go but I'm fresh out of green at the moment.  I realize I'd need to flush the system well to remove any traces of the green, just curious if there is a compelling reason not to use the pink stuff.

  • grayracer513

Posted August 30, 2016 - 09:53 AM


There are two basic kinds of coolant; Ethylene Glycol, the toxic green stuff, and Propylene Glycol, the stuff that comes in alternate colors and is said to be non-toxic.


(Actually, there's a third: Oxalic Acid based coolants like Dex-Cool.  All you need to know about it is the word, "NO")


PG coolants will raise the boil point marginally, like 5-7 degrees.  Overall a better choice.  As far as flushing, all that's needed is to drain it refill with water and run for a couple minutes, and drain again.  Ready to use products like Engine Ice are PG based.  Add a capful of RedLine Water Wetter (a surfactant) to enhance the thermal conductivity between the coolant and the radiators.

  • cowboyona426

Posted August 30, 2016 - 10:01 AM


Great info grayracer, many thanks.

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  • stevethe

Posted August 30, 2016 - 02:37 PM


Using Dex cool in all my bikes. No issues whatsoever. Drain it every five years. Everything looks like new.

  • grayracer513

Posted August 31, 2016 - 06:14 AM


Whatever.  Most of us GM mechanics hated the stuff because it tends to turn into a brown sludge if it comes in contact with too much air during it's life. That, and several radiator failures due to electrolysis were blamed on it.  I switched my own truck over to PG years ago.  Dex-Cool offers no advantage over PG that I'm aware of.

  • stevethe

Posted August 31, 2016 - 06:25 AM


Could be the new stuff out nowadays. Every time I open the cap it looks exactly like the day it went in. My 07 that has used it since new shows no corrosion and it is getting beat up on a regular basis by the Boy. 

  • cowboyona426

Posted August 31, 2016 - 07:09 AM


Well, I reluctantly changed my coolant out last night to the pink Asian stuff.  It is not PG, it contained mostly ethylene glycol.  I think eventually I will just buy some of the Yamacool stuff and put that back in.  Not sure how much I trust this pink stuff, because as grayracer said about the DexCool a small amount left exposed to the air eventually evaporated and left a sticky residue behind.

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