I was just doing my throttle body bypass mod when i noticed the coolant in my system is green,when my chilton manual says 5.7l (vin P),which my car is,should run DEX-COOL.Could this hurt my car?

92LT1 Black Sheep Squadron :flag :seeya

 

My coolant is green too :cheers:

 

:eek: If you don't switch it back to DEX-COOL in the next 10 minutes, your car will explode!!!!!!:eek:

Just kidding....

Some people prefer the green over the red and switch it accordingly, but there really isn't any big difference.....

If green is in there, it's not worth it to change it back..... unless you really feel the need to. :thumbs:

 

I think 1996 is the first year the Corvette was filled with dex-cool (red) antifreeze. I cant believe the 92 manual would say dex cool. Just dont mix red and green antifreeze...that will cause a big problem.

 

Leave the Dex-Cool out. Even a GM guy told me that Dex-Cool is junk, even though his cars call for it (highly corrosive)! :nono: :flag :flag

 

Its the same question or topic as engine oil, some only put in Mobil 1 and synthetic oil, others just put in regular oil.

I guess its all up to the car owner and what they prefer.

I have an L98 engine and put the green stuff.

As long as the fluids are changed on a regular interval, that's what really counts :thumbs:

 

Previous posts have said to never, ever, put dex cool in a system that's had the green stuff. The two are not compatible and there's no way to totally flush out one or the other. :nono: :nono:

 

:iagree: I have been told this several times. Also, I believe '96 was the first year for Dex-cool. My '96 Firebird has Dex-cool.

 

Dex-cool = 96 & newer.

 

Thanks guys.

:flag :seeya

 

Contrary to popular belief, there is no difference in pH (also called corrosiveness) between the EG and PG antifreeze as a whole. The main difference between the 2 are toxicity, if you're not drinking it this should not matter to you. As stated previously, you should not mix the 2 together as they will not completely mix together. There is no way to flush one or the other out completely from a cooling system, thus the information not to switch from one to the other. There is a difference between brands as to their inhibitor contents (phosphates more often) and their usage. These are added to soften hard water when added to the coolant and reduce the amount of damage done by the coolant. This can be a pH buffer to prevent pH drop out from the metals in the coolant due to wear, protection of aluminum parts (heads, w/ pump housings, manifold.) due to cavitation, etc.. Mercedes does not use phosphates in their coolant but uses other chemicals that do the same thing, This is because european water is harder than US water. Later vettes were specified the dex cool product to be safer for the environment, better protect the aluminum, and standardize a coolant that would mix with itself, preventing the unknowing home mechanic from mixing incompatible coolants together. Neither is better than the other when you look at all aspects but if the car came green, you need to stick with green and vice-versa.

Hope this helps!

 

This is flat out silly. I've switched my wife Ford mini van over to Dexcool so all three of my cars have the same coolant. No problems at all after 7 years.

Eric
Running with sissors, I'm a daredevil

 

I switched my 95 GMC Sonoma over to Dexcool after a good flush 3 years ago. It's looking like it needs a coolant change now, but it seemed to last at least as long as the green stuff. Certainly no disaster.

How long do you run Dexcool between changes on the cars you've switched over and how did you clean the cooling systems before you switched?

I used Prestone Superflush and drove around for acoupl of hours with it, then did a long flush with one of the Prestone flush kits you butcher into a heater line.

All that siad, I didn't see enough (any?) improvement to justify switching any more cars over.

Dick
Occasionallly colors outside the lines.