Sorry if this is posted already. I looked and didnt see the answer I need. Ok..I want to get my coolant flushed/changed on my 2006 Aveo HB. Yes it still only has 34K miles on it, and most of the coolant was replaced, but not all of it, let alone a flush done last year, when that plastic part that hooks the upper hose to the engine broke and blew coolant all over the engine! I had the new redesigned one put in, made of metal finally, but I didnt get a coolant flush/change, they just filled up whatever was lost.
NOW I am trying to get it changed, but it turns out my 2006 has the red 'DEXCOOL' coolant in it. I think thats how it is spelled. I called Chevy and they told me THAT 'DEXCOOL' is what is in the car now, and if I ask 10 people I will get 10 different answers. So thats whats in it now.
I've seen videos on YouTube of GM engines from the late 90's, torn down to replace head gaskets and things like that, and the coolant openings are all gunked up with a red sludge. They all ran on DEXCOOL, and they call it 'REDKILL' or something like that. And sure enough 50% say to get rid of it, 50% say if you maintain your car, it runs forever. And it is a long life coolant, but most new coolants are long life coolants.
Ok, my problem/question is...should I get it flushed out as clean as possible and switch to a 'Prestone Green' type coolant? OR stay with 'DEXCOOL'? I could swear that I read on here, or someplace online, that this 'DEXCOOL' is a horrible coolant. That it doesnt even protect the coolant system at all, it gunks up, and clogs up in the system, and causes rust. Is this right?
Should I insist on switching to a 'Prestone' type coolant? My manual says to use the 'ethylene glycol' coolant, Chevy SAYS that is in DEXCOOL...so that confuses me more. See why I am so confused? What do I do? What is true and what should I put in my system? When I called Chevy, and told them the miles, they said that I probably dont need a flush/change, and to come up and they would test it. But if most of it is still the original 9.5 year old coolant, I KNOW it has to be changed, to get new protective chemicals in it, and protect that water pump!
So...can someone, anyone tell me what is true, what to do, and what NOT to do. I am VERY confused. To much information, but not enough information that I can trust. So I am asking in here, you guys know the answers. IF I had the money for that expensive 'waterless coolant' that is out there, I would put that in my car. BUT that is out. So it has to be one of the regular ones. Opinions please.
Going to have this done Monday by my mechanics, I want it done right, into the heater core etc... I dont know if I will get it right. This way if something blows up after THEY change it, I have a chance at blaming them.
**** Boy the more I dig on the internet ,the more confusing it gets. Even the lawyers that are doing class action lawsuits against GM because of this coolant, and some 'well known mechanic', who says it isnt the coolant, it is the lack of maintenance, and because people mix different coolants at the same time, or use tap water with the DEXCOOL, and that will cause rust/corrosion rapidly, these things are what also cause the sludge to build up.
They both say to keep using what was put in your car when it was made. Period. Then they talk about the lawsuit and its all about the head gasket being eaten away by the coolant, and my head gasket was replaced YEARS ago, like before my new car warranty was gone! And these newer gaskets are suppose to be made of some different material so it doesnt get 'eaten' by the coolant, and the other reason this coolant causes trouble, is when the coolant is allowed to get VERY low, it causes the sludge problem. so...see why I am going in circles?