So yes, this is probably a very stupid question. But honestly I don't know the difference between DexCool and regular antifreeze/coolant, other than the color.

I just finished flushing the entire cooling system and was pleased to see the water change from rusty brown to clear water using a Flush kit connected at the heater core and draining from the top of the radiator.

Now, I go to grab the two bottles of coolant I had on the shelf and they are DexCool.

I'm afraid to even open the lid, since it says "GM Approved" all over both bottles. Do I need to get regular antifreeze/coolant, or is it harmless to use the DexCool?

 

dont use dexcool in your truck im not sure if your truck takes normal green antifreeze or ford gold antifreeze check your owners manual

edit i just read your sig ummmm i dont know what did your 5.0 come out of? still dont use dexcool

 

99 Mercury Mountaineer

 

im pretty sure it being a 99 youll need the green stuff i think 02-03 is when for started using the gold coolant

 

i have a 5.0 in my stang. ive ran green, orange, and water in it. no problems ever. got green in it now.

 

Go with the green old classic stuff.

 

Prestone mixes with all

 

if its the actual dexcool its only an issue if it gets mixed with regular coolant, it can gel and clog up your cooling system, but since you just flushed your system you should be in the clear. if it were me i would flush it and replace it with the green stuff, but i dont think there will be any damage caused from it being in there.

 

Just fill it with water and drive down and get the right stuff.

 

Yay common sense!

 

x3

 

Got it filled up. 2.6 gallons of antifreeze GREEN, 2 gallons of water.

 

i always run the green in every thing. i know on a chevy the dexcool will eat the water pump out common problem ive seen

 

That and intake gaskets and anything else that shit touches!

 

i would use the prestone "any make any model, any colour stuff" from what i remember, it's not that much more than regular stuff, and it doesn't matter what your car has, had, was supposed to use, will use, or anything else...

 

thats why i switched my wifes blazer over to the green stuff, ive never understood why GM used that dexcrap, it seems to cause more problems than not.

 

Best thing you could have done! Dexcool needs to be pulled from everything would save a lot of problems!