What coolant are you guys using?

[pontiacgp]

The dexcool was supposed to plug its own leaks when exposed to air. In reality, it just makes a mess.

I never heard of that...you got a link to educate me?.....

 

[Supercharged111]

I never heard of that...you got a link to educate me?.....

I don't. I think it was a post from someone I trust that I took at face value years ago.

 

[pontiacgp]

I don't. I think it was a post from someone I trust that I took at face value years ago.

I can't find that info anywhere.....I wonder if someone here who is using dexcool if they can put a hole in their rad for me and let me know if the dexcools plugs it up....if it doesn't blame that ↑ guy....thanks...

 

[Supercharged111]

I can't find that info anywhere.....I wonder if someone here who is using dexcool if they can put a hole in their rad for me and let me know if the dexcools plugs it up....if it doesn't blame that ↑ guy....thanks...

For what it's worth it didn't work on the heater core in the wife's Envoy. Talk about a nightmare job.

 

[Cajun83HO]

Harbor freight sells Peak 50/50 green for $8.50 a gallon. That's what I use in my iron 307, iron/aluminum 5.3 but use a Ford type for wife's Exploder because it was in warranty. Was.

 

[AndrewMrChevy]

The new DEXCOOL is formulated special for the Aluminum in your engines, radiator and water pump.

 

[500/600]

Just wondering because I'm at the point where I want to fill.
Dex cool or ???

So after asking this question and getting every alternative opinion, what choice have you made?

 

[Tuffregal83]

Daily drivers get 50/50 green or yellow
I started to run water and royal purple ice in the regal this summer and temp stays at 180 so I'll be running that in all the summer cars.

 

[Tony1968]

So after asking this question and getting every alternative opinion, what choice have you made?

I went with Dex cool 😎 Zerex brand if it matters. Plus a dose of Redlines water wetter. Still filling slowly through top radiator hose. Had to pull intake manifold 3 times due to a leak at rear passenger steam vent fitting. Darn Lsxr manifold needs slight shave at that corner. Nothing like having to take a file to your very expensive intake. I'm pretty sure I can RR manifold blindfolded
This was based on things said here and elsewhere and your positive results Mr 500/600

 

[Tucker H.]

I have 3 vehicles with dex cool in them and they run just fine with zero issues. They are an 07 STS, 07 Sky, and my last is the oldest a 1965 Buick Wildcat with factory engine. The PO used dex cool after they pulled and flushed the block and and heater core along with having the radiator re-cored. And that old sled runs cool as a cucumber in 95+ degree heat in town or on the interstate.

So I've not had any issues with it, and all my other cars run Old School Green antifreeze, the 79 Scout, 85 Bonneville, and 95 F150.