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Banned
Join Date: Mar 2007
Location: Ft.Lauderdale, FLORIDA
Posts: 2,813
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Coolant
Andrew Olson is a person who posts on another website who'd name starts with the letter "R". There is a thread there that he started that deals with the ideal coolant for Porsche 928 engines.
Me: I've been running Prestone Lo-Tox propylene glycol-based coolant since2000. I've not had any issues. What sort of coolant are you folks running? I own a 1997 VW Jetta VR6, and it HAS to have VW G11 coolant apparently. G12 will work, but anything else will destroy the head gasket! Holy ben-wa balls Batman! N? |
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01-21-2008, 05:05 PM
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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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Dexcool, prestone branded "I think" with walmart distilled water.
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01-21-2008, 05:10 PM
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Registered
Join Date: Jan 2007
Posts: 11,758
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Been running Prestone for about 30 years, in everything.
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01-21-2008, 05:15 PM
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Registered
Join Date: Dec 2006
Location: Madison, WI
Posts: 170
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IMO, it is very important that you use phosphate-free anti-freeze with distilled water in your 928. Failing to do so will result in electrolysis where the coolant eats/corrodes the aluminum resulting in the cooling passages to become smaller and less effective at cooling. The only brands of antifreeze I know are truly "phosphate free" are the Mercedes-Benz brand, Audi/VW brand, and one of the Texaco brands. I use the MB brand and have been very happy with it.
I am not a big fan of Dexcool unless the car came with from the factory with it. I've seen some non-Dexcool cooling systems turn into a rusty sludge-filled mess after introducing Dexcool. I imagine Dexcool may be fine to use, but only if you completely flush all of the old coolant out of the system, which isn't an easy thing to do if you only want distilled water in your cooling system. Just my $.02 worth. |
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01-22-2008, 06:49 AM
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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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I use distilled to get as low as "practical" of calcium content, but don't get too weird about tap water when it isn't practical. I buy oil and coolant at walmart, so its no added work to put a few $0.69 jugs of distilled water in the basket at the same time.
I'm not sure after reading some of the coolant thread if I will continue with DexCool, but its a bit pointless to worry too much about the coolant used in a 25 year old car currently getting the best PM of its life. |
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01-22-2008, 07:04 AM
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