Don't Distilled Water for Radiators?

[CougarHound]

I used distilled btw. I know GM had problems with dexcool so I just stick to tried and tested green stuff to keep it simple. I know it ain't a GM but whatever. Maybe with the newer Toyotas I'll use the red stuff.

 

[shadow247]

so whats the deal with people on the first page using green coolant? i thought that was a big no no in these types of cars?

Toyota says to use the Long Life coolant, but as long as you flush thoroughly, and change it every few years, you can run Green. I've been running green since 2014 when my Radiator sprung a leak. The system was totally flushed, and switched over to Silicate Free Green coolant. The issue comes with mixing the two, they can cause reactions that cause gelling or corrosion and ultimately failure of the cooling system.