How bad is Dex-Cool really?

[Ursae_Majoris]

Originally Posted By: akheathen
do yourself a favor, if you can.......find some undiluted prestone dex-cool, and first, dip your finger in it and rub it between your thumb and forefinger. first impression, not knowing what it was, you would swear you are playing with a light-weight orange oil, not coolant.

That would be glycol you are feeling, same antifreeze ingredient used in Dex-Cool, low-silicate American green, Asian HOAT and European G-05, G-12, and G-30.

 

[akheathen]

no, glycol is what makes the coolant feel sticky. what you are feeling is the organic base as a thick, viscus, lubricant, almost thicker than atf. it's the same stuff that separates and sludge's in the system when the coolant breaks down. yes, glycol is medially lubricating, but you can see a huge difference