What coolant do you use?
10-17-2005, 02:19 PM
#16
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Originally Posted by jerome951
The Zerex G-05 is about $13/gallon. Just picked some up for my winter fill (I run water and Wetter in the summer for track driving).
10-17-2005, 02:50 PM
#17
Hey Man
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For those of you running distilled water and Water Wetter only and no coolant; good luck on preventing internal corrosion of your cooling system and block/head interface. There is no reason to avoid coolants unless you have a dedicated track beast that you drain often. WW does not have adequate corrosion inhibitors for aluminum or water pump lubricants. Even Redline will tell you not to run it only with distilled water. Sorry to harp but this is not a good combo. YMMV
10-17-2005, 02:54 PM
#18
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Chris,
Thanks for your feedback on the Evans. I have some of it that was supposed to go into one of my MR-2s but never did.
As far as getting the water out of an existing system. The Evans NPG is a Proplyene Glycol type coolant so what a buddy of mine did was buy 4 gallons of Sierra coolant (also Proplyene Gly) and used it to flush the system. Basically drained all the coolant. Filled it with pure Sierra coolant and ran it a little bit then drained and refilled w/ the Evans.
Thanks for your feedback on the Evans. I have some of it that was supposed to go into one of my MR-2s but never did.
As far as getting the water out of an existing system. The Evans NPG is a Proplyene Glycol type coolant so what a buddy of mine did was buy 4 gallons of Sierra coolant (also Proplyene Gly) and used it to flush the system. Basically drained all the coolant. Filled it with pure Sierra coolant and ran it a little bit then drained and refilled w/ the Evans.
10-17-2005, 03:05 PM
#19
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I am running Caltex Engine Cool, it is not glycol(sp?) based and "safe for aluminum engines & radiators).
It is pre-mixed, works fine!
It is pre-mixed, works fine!
10-17-2005, 03:35 PM
#20
So if I can't get the Zerex G-05 at the local auto parts stores, I can pick some up at a Ford/Chrysler Dealer?
I've got to flush the BMW too, I can use this Stuff there too?
http://forums.bimmerforums.com/forum...1&postcount=10
I guess so...
Thanks.
I've got to flush the BMW too, I can use this Stuff there too?
http://forums.bimmerforums.com/forum...1&postcount=10
I guess so...
Thanks.
10-17-2005, 03:41 PM
#21
Race Car
The permanent VW coolant is G12, and I would never leave it in for 'life'. I wouldn't do that with any coolant. I ran dexcool in my 86 N/A, nothing interesting to say there, except it's orange. I run Prestone yellow in my 951. It's compatible with any color antifreeze, so I didn't have to perfectly flush out the engine, and it was cheap (~$11/4L jug). Phosphate and silicate free, so you don't have to worry.
04-02-2008, 12:23 PM
#22
Sorry about bringing an old thread back.
I previously had green coolant in the car. I have no idea what brand or type it was. I want to put in the proper coolant this time around but have heard issues about mixing coolant types and gelling. How serious of an issue is this? Can I just stick with the green? Is it required that I flush the system prior to refilling?
The auto parts store listed Dex cool G05 for the Porsche.
I previously had green coolant in the car. I have no idea what brand or type it was. I want to put in the proper coolant this time around but have heard issues about mixing coolant types and gelling. How serious of an issue is this? Can I just stick with the green? Is it required that I flush the system prior to refilling?
The auto parts store listed Dex cool G05 for the Porsche.
04-02-2008, 02:11 PM
#23
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When I started reading these forums back in 96 or so, one of the preferred coolants was the pink "Autobahn" brand sold by Audi dealers.
I now use coolant from the Porsche dealer, which is pink also. Seems to work OK and I know it's safe for the engine.
I now use coolant from the Porsche dealer, which is pink also. Seems to work OK and I know it's safe for the engine.
04-02-2008, 02:17 PM
#24
I have been testing out the Evans stuff. So far so good!
Great concept with a lot of good technical plusses. One interesting side effect – it does not turn to steam, so no bad head gasket clouds!
You can actually run the system with the rad cap off, the most pressure you will see is a couple of pounds. Free air boiling point is 375.
The catch is that you can’t contaminate it with any water – so you really need to drain the system. I started out with a new engine and a new (Griffin) Radiator.
One down side – the stuff is really slippery, I had a slight hose leak and just a small amount made the rear end very ‘loose’ at the track.
Chris White
Great concept with a lot of good technical plusses. One interesting side effect – it does not turn to steam, so no bad head gasket clouds!
You can actually run the system with the rad cap off, the most pressure you will see is a couple of pounds. Free air boiling point is 375.
The catch is that you can’t contaminate it with any water – so you really need to drain the system. I started out with a new engine and a new (Griffin) Radiator.
One down side – the stuff is really slippery, I had a slight hose leak and just a small amount made the rear end very ‘loose’ at the track.
Chris White
I have it but not used it yet. I am a bit afraid of that the temperature will be higher than with regular coolant. I have a big/thick alu cooler so the capacity is ok with water.
I also got Motul MotoCooling that I would change to. Its for motorcycles but many racecars use it. Boiling temp is 136 degrees C at 1.5 bar pressure.
Any experience?
04-02-2008, 09:33 PM
#25
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Green stuff is fine, most of these cars are running it. I have spoken with several porsche mechanics that have been working on these cars since new and they said any coolant ment for al. engines is fine.
04-02-2008, 11:26 PM
#26
Are there any known issues of mixing the green stuff with the green stuff in the car? If needed, I will flush the system but that doesn't get it all out.
The guy at the auto parts store told me to get the green, even though the chart said G05. He said that mixing the Dexcool with the green stuff could cause gelling.
04-03-2008, 07:46 PM
#29