Antifreeze / coolant choice
05-03-2005, 06:07 PM
#1
Antifreeze / coolant choice
[/B]Time to flush and change the coolant. With our temperamental cooling systems any recommendations? Any to stay away from? Where I live we have extreme temp swings from 110 F in the summer to -10 F in the winter. Lots of hot weather driving. I have heard that the environmentally safe orange stuff isn't worth a darn. What say you?
05-03-2005, 06:56 PM
#4
Rennlist Member
I have run the orange Dexcool (with distilled) for the last 3+ years after flushing green out at belt/pump change. Initially driven (carefully) in ambients up to 120F, now more in the 65-95F range. Not lost a drop of coolant , or seen any symptoms of problems in cooling system. Interior was pristine (based on inside of thermo casing, and heater outlet at rear of head) at changeover time, but havent had to look inside since - wont until next belt change.
jp 83 Euro S AT 49k
jp 83 Euro S AT 49k
05-03-2005, 07:22 PM
#5
Under the Lift
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There was some unnerving reports about Dexcool posted here about 6-8 months ago. I think Wally posted it. Until then, it was regarded as the thinking man's coolant, and people using the the green stuff were treated with some disdain and labeled ignorant. My own personal review of the folklore on coolant selection, use of distilled water and all the other issues lead me to conclude that a lot of unrelated information and observations were being juxtaposed to come up with recommendations that just didn't have much relevance.
My car ran green from new, and when I removed the original water pump at 95K miles and 14 years, the pump and all the water passages looked like new. Still, I was persuaded by the zeitgeist (sp?) to switch to orange, and I even used some distilled water despite the fact that the tap water in the area in which I live is probably the softest in the country. The stipulation to use distilled water originates from European areas that have water that could be used in place of cement. I've since gone back to green and tap water. I don't think there is enough information to say anything else is safer.
My car ran green from new, and when I removed the original water pump at 95K miles and 14 years, the pump and all the water passages looked like new. Still, I was persuaded by the zeitgeist (sp?) to switch to orange, and I even used some distilled water despite the fact that the tap water in the area in which I live is probably the softest in the country. The stipulation to use distilled water originates from European areas that have water that could be used in place of cement. I've since gone back to green and tap water. I don't think there is enough information to say anything else is safer.
05-03-2005, 07:56 PM
#6
And the debate rages on..... 
Just doing a little day dreaming and it dawned on me that in all the years of attending all forms of auto racing I have never seen anything but green stuff flowing out of any wreck or blown motor. Perhaps by design? I don't know, but if race teams primarily use green, good enough for me. I'm sure that there's money involved at that level but I don't think a top race team would chance a $ 50,000 motor to any fad product regardless of the dollars. Just out of morbid curiosity, what does Porsche use today in the water cooled fleet?
Just doing a little day dreaming and it dawned on me that in all the years of attending all forms of auto racing I have never seen anything but green stuff flowing out of any wreck or blown motor. Perhaps by design? I don't know, but if race teams primarily use green, good enough for me. I'm sure that there's money involved at that level but I don't think a top race team would chance a $ 50,000 motor to any fad product regardless of the dollars. Just out of morbid curiosity, what does Porsche use today in the water cooled fleet?
05-03-2005, 08:14 PM
#7
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As far as I'm concerned the evidence is absolutely conclusive and there's no doubt in any intelligent person's mind. Those who disagree with me are knuckle dragging cretins and should have their gizzards fricasseed in whale oil, and I am UNANIMOUS in that!!! 
er, what was the question?
er, what was the question?
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05-03-2005, 08:50 PM
#10
Fleet of Foot
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As often as a daily driven 928 would chew up and spit out water pumps, it makes absolutely no sense to me to run with the orange stuff. If the water pump fails, you'll be dumping it anyway, so much for the 10 years or whatever protection it's supposedly giving 
(that was sarcasm, son!) I've never had a problem with green.
(that was sarcasm, son!) I've never had a problem with green.
05-03-2005, 11:22 PM
#14
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Well, there's always Zerex yellow .... 
BTW, for this one particular product below, there is a choice of colours : from Zerex literature,
"What vehicles use Zerex G-05 in the factory fill and what is the dye color?
1984 Mercedes and beyond (light yellow)
1990 Deere and Company vehicles and beyond (green)
2001 Chrysler, Dodge, and Jeep and beyond (orange)
2002 Ford, Lincoln and Mercury trucks and SUVS and beyond (yellow)
2003 Ford, Lincoln, and Mercury automobiles and beyond (yellow)"
BTW, for this one particular product below, there is a choice of colours : from Zerex literature,
"What vehicles use Zerex G-05 in the factory fill and what is the dye color?
1984 Mercedes and beyond (light yellow)
1990 Deere and Company vehicles and beyond (green)
2001 Chrysler, Dodge, and Jeep and beyond (orange)
2002 Ford, Lincoln and Mercury trucks and SUVS and beyond (yellow)
2003 Ford, Lincoln, and Mercury automobiles and beyond (yellow)"
