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anti freeze

I think it is all the same. I worked for a major chemical plant and back about 40 yrs. ago when they had a canning plant they bottled for about a dozen different brands. just changed the color
 
I always thought that Prestone was as good as you can buy. My Chevy mini van (2005) has that GM pink stuff in it. A radiator shop guy told me its crap.
 
(quoted from post at 11:17:36 01/30/12) what is the best quality anti freeze
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Antifreeze is all made from some form of Glycol. All they do is vary the concentrations, but it tells you the concentration on the bottle. Some have additives added and some don't. You never really know whether you get any additive other than what they tell you. I guess if you buy one with a rust preventative, you just wait and see if your system rusts or not.
 
I use Prestone and Peak. I change it every other year in my old Mercury Cougar as it's a big pain to change out the heater core as you need to pull the dash. The engineer that designed that setup should have been castrated.
Hal
 
Would you believe there is pretty much only 3 or so places that make the stuff and those places all sell to different companies and those companies in turn put the stuff in there own packages so it pretty much does not matter if you buy it at Wal-Mart or which brand
 
thanks i have a 180 allis that i had apart 2 years ago to fix a leak on the bottom of the sleves i fixed the one that was leaking and put it back together now i got it apart again and its full of rust again i dont want it full of rust again
 
i'd go get some store brand.. shop price.. if it's a gasser.. call it good.. if it's a diesel that needs adds, get them and add them.. OR, if you can find a pre treated diesel af that has the adds installed, for cheaper than you can buy the adds and af and mix yer own.. go for it..

soundguy
 
Sounds like you have a wet sleeve engine in your AC. We have had some trouble with our JD's wet sleeves and cavitation. They strongly recommend adding some stuff called Coolant Conditioner. It causes a chemical reaction in the coolant to buffer the ph closer to 7.0. We have been using it for many years and it has definately helped extend the sleeve life in them, and it's not too expensive.
 
It does not make a lot of differenge on gasoline engines, I use Prestone or Peak.
Diesel engines with wet liners are a different story, get an antifreeze designed for this application. As someone else said if it does not have an additive to prevent liner pitting be sure to add it. The additive puts a thin coat of chemical on the exterior of the liner preventing cavitation. This is even more important on high output engines as the liners "vibrate" more when combustion takes place.
 
The best anti freze is what the manufacturer of your vehicle calls for. With todays aluminum,plastic and copper components varying in vehicles with aluminum blocks you need to use what the warranty specs. I worked in my friend's auto shop and I have seen the corrosion and damage from the wrong product..I don't care what the shade tree mechanics tell you here..use what is called for..the other day was a discussion on 28 year old anti freeze in unopened cans..For the sake of twenty or thirty bucks I would not put it in anything I own,if a vehicle calls for Dexcool or some other type use it!
 
I don't completely agree with what your saying. Just because GM wants you to use Dexcool, doesn't mean you should. I seem to recall huge lawsuit(s) related top Dexcool. I changed the coolant in a 97 Vortec over 2 years ago with green anti freeze and it's still fine. I flushed it real good, an filled it up 50/50. Apparantely not flushing it 100% can causing gelling issues but I have no problems so far.
 
To say all the antifreeze comes from the same place and it is all the same, is the same as saying engine oil is all the same. We all know there are differences in oil. You are correct in that there are three places that make the ethylene glycol. But in an ready to use engine coolant, that is about 48% of the total product. The other is water and additives. The additives are what differentiate one coolant from another.

I agree with what someone said, use what the manufacturer recommends. Then if you have problems, you at least have a leg to stand on when you complain that is isn't working as designed.

And anyone that had anything to do with GM in the 9 late 90s and early 00s will tell you to avoid DexCool. I can't disagree with that statement. But beyond that, most are good. Yes, there are great ones, and there are some not so great. But they all work ok. So just do as most of the manufacturers say and forget it.
 
(quoted from post at 11:17:36 01/30/12) what is the best quality anti freeze
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Antifreeze blenders are just like all blenders. They are not going to put any more additive in than they have too. When you buy an 87 gasoline, that is it. One is as good as the other. Auto parts stores sell a lot of water additives. Perhaps you have water that has a bad ph. Try DI water when you refill it. Watch what water you buy though, some store calle it DI water and it is simply distilled water. Don't use distilled water because the impurities are still there. DI water has had the contaminant ion removed.

(fuelsandlubestechnologies.org)
 
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