Engine Coolant

Coolant

Whats the difference between the many types of coolant? Green, Pink & red. Is it ok to use the silver bottle with an orange cap from prestone? I have the pink coolant btw. Or do you guys recommend using toyota coolant?

my 03 corolla came with Dexcool in it... supposed to last 150,000 miles supposedly.

can the colors be mixed? and does it matter if i use oem toyota fluids or just a bottle from a car parts strore?

i know that dexcool and the old green coolant cannot be mixed or it turns to a gel... so be carefull what you mix.

well i have this prestone stuff that has a pinkish coolant in it. Should that be ok ? I wasn't sure i originally bought it for use in my moms 2002 camry. But her car has yet to be low on coolant in the past 2 years. I just want to know because the level in my resevior tank is starting to drop becuase people have been driving my car nonstop with the a/c on. Should i just use this stuff or stop by a toyota dealership and keep it oem?

prestone makes a new coolant that is a light yellow color and it says it will mix with any other coolant out there... if your not sure just use that stuff. its rated at 150,000 miles just like dexcool.

Prestone makes the grey bottle with red cap which is pinkish in color. It's dex cool approved whatever that means. it says 5years /150,000 miles.

The dealer charges 12.99+tax for the toyota coolant and i'm not sure if its premixed or needs to be mixed.

still not sure which one to use. :?