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-   -   Zerex Dex-cool (http://www.gasgasrider.org/forum/showthread.php?t=462)

MIKEWA 12-06-2006 11:33 PM

Zerex Dex-cool
 
ZEREX DEX-COOL antifreeze contains no silicates,phosphates,borates,
nitrates,amines. Is this ok to use in my 05 gg 300 ?
thank you mike:)

42GEORGE 02-21-2007 10:16 AM

why bother?
 
Has anyone here ever heard of EVANS NPGR "waterless" coolant, this stuff is amazing, it has boiling point of 400F degrees and is good down to -10F, and when it does go below -10 it actually shrinks instead of expanding. What else ? Well, it's good for 100,000 miles! So Evans reccomends draining it into a clean pan (no matter what color it comes out) and re-using it for 100,000 miles. It goes for about $38.95 per/gal but this will do 2-3 bikes depending on size & coolant capacity and its well worth it, especially for those on 4-strokes. Keep in mind that Prestone 50/50 boils at 276F degrees, and it boils before it boils over & this creates little bubbles in the jackets which makes "hot spots", Evans doesnt have any evaporative properties. Just thought this might help.

www.evanscooling.com

GMP 02-21-2007 01:06 PM

EVANS is the stuff to use.

jeffd 02-22-2007 11:49 AM

I have read you can go with a lower pressure cap when using EVANS. Given that, the need to switch to the higher pressure ktm cap is removed if you switch to Evans Coolant.

jeff

Eric K 02-22-2007 04:45 PM

I use the Evans coolant. It works very well, with no boil over issues even under the most demanding conditions. A few key things with the Evans coolant...

1) get all of the water out of the system before you use it.
2) allow room for expansion - do not fill the cooling system too high

I back the radiator cap off a bit to run at a lower system pressure.

Regarding DEX cool or any other coolant, NEVER mix different colored coolants in even small quantities as some of the combinations are very corrosive to aluminum.


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