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07-09-2008
I am doing some pretty major mods to my car right now and I have noticed that while I have the motor out it would be a good time to replace the coolant....What my question is which coolant will keep my car the coolest? I have a 160* Tstat but would still like to make sure it ran as cool as possible.
07-09-2008
changing coolant won't help it cool better, and keeping the car cold doesn't do anything for performance (just fools the computer into dumping more fuel)
07-09-2008
yes get all the dexcool out of there. you can do a search for the Dexcool threads....
I would change it out to normal green coolant. your radiator will thank you!
07-09-2008
I prefer the yellow works with anything stuff myself, just in case you don't get it all out, or a shop decides to add some
07-09-2008
The way to stay cooler is to a 30/70 water/coolant mix in the summer. Just remember to add more coolant before the first freeze.
07-10-2008
I will definitely be changing the dexcool! Just wondered what brand people were using?
07-10-2008
FWIW, you would want a 30/70 coolant/water mix. The more water you run, the better in the summer.Originally Posted by VinnieGTP
I knew what you mean, I think you just got your mixes all worded up.
07-10-2008
my car ran 10-15° cooler when i dumped dexcool for slandered green.
This was messaured by scan master and a tech II.
Now in my regal i changed dexcool when i did LIM and i dropped a from dead center tick to half way to the next lowest tick with just green coolant.
07-10-2008
That's what I meant, it was late.
07-10-2008
I am running straight water for now. I haven't taken the time to flush the system and add straight green.
07-11-2008
Prestone's universal (yellow) is great stuff.
07-11-2008
This is what I use in a 50/50 mix year round in all my vehicles. Never a problem.Prestone's universal (yellow) is great stuff.
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