What coolant to use in KTM 450 EXC?

[yammieman]

hi there. just a quick question or 2 about coolants. Is it ok to use an automotive(car coolant) in my KTM 450 EXC 2004 model? or do i need to use KTM certified coolants or pure motorcycle coolants like Motorex or something?

at the moment the coolant i bought is Tectaloy 90 Plus heavy duty Pre-Mixed 50/50 anti-freeze coolant. It also is fine with Aluminium radiators & engines, i know that much. I provided a link incase others want to know more or try it out.
http://www.tectaloy.com/tectaloy_completefillcoolants_90plus.html
if that coolant is fine to use, then i shall put some in but just wanting to make sure so any help as always, is greatly appreciated :)

 

[Danman]

50/50 mix is fine. I drained mine out and filled up with distilled water. Run it and drained again. Then filled with Engine Ice. Works well.

 

[cujet]

In general, conventional antifreeze (ethylene glycol) without silicates is fine for motorcycle use. It's the silicates that cause rapid pump seal wear. I simply go to my local auto parts store and pick up a gallon of Prestone extended life, as it's silicate free. I then mix it with Reverse Osmosis water from my tap and off I go. No need to spend more.