07-11-2007 | #1 |
Join Date: Jul 2004
Location: Sudbury, Ontario. Canada
Posts: 1,538
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Antifreeze
Hi everyone
I got my nice new Samco hoses last week and am now I'm looking at doing a flush and refill in combination with the hose install. I did a search on here for the proper antifreeze details (GM1825M ethylene glycol silicated) and headed to the local Crappy Tire. When I got there, none of the stuff they had in mentions the GM number and none seem to be 'silicated'. Here's the rundown on what they have available. Havoline Extended Life Antifreeze/Coolant DexCool approved GM6277M/ASTM D4656/D5345 compliant. GM DC-001 approved. "Free of silicate/phosphate/Nitrate & Borate" Prestone LongLife Antifreeze/Coolant DexCool Approved Silicate and Phosphate free GM6277M/ASTM compliant Prestone LowTox Antifreeze/Coolant Propylene Glycol based Doesn't harm kids, puppies, insects, fluffy clouds or people's consciences - but not much info on what is actually in it. There are a couple of other 'own-brand' cheapy ones but they seem to have the same contents as the Havoline and Prestone ones Are any of these okay or do I need to search further? Thanks Dave
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1991 #1516 Black/Black davidmkelly.com "Speed is often confused with insight." - Johan Cruijff |
07-11-2007 | #2 |
Join Date: May 2005
Location: Leesburg, VA
Posts: 2,713
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Re: Antifreeze
I would not use any of those.
The DexCool is not designed for our cars, and seems to be corrosive to them. Low-Tox would be an ok choice, in that it shouldn't harm anything. It's a silicated coolant just like the green stuff, except with propylene glycol as the base. However, it will perform less cooling function than ethylene glycol. Maybe you'd never notice a difference, though. But if you need the factory level of cooling, you need to get some silicated ethylene glycol coolant. I have used low-tox in daily driver cars where max cooling really wasn't a necessity. It worked just fine and is perfectly safe for the car. It just doesn't have as much cooling capability as ethylene glycol. It is much less toxic, though (though still toxic)
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Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img] |
07-11-2007 | #3 |
Join Date: Nov 2005
Location: NJ
Posts: 299
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Re: Antifreeze
dexacool
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[FONT=Century Gothic][SIZE=5][COLOR=black][I]:dancing[/I][/COLOR][/SIZE][/FONT] |
07-11-2007 | #4 |
Join Date: Jul 2004
Location: Sudbury, Ontario. Canada
Posts: 1,538
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Re: Antifreeze
Thanks for the info and warnings - I have found a Napa store locally and they say they have something compatible with the GM1825M standard so I'll check that out.
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1991 #1516 Black/Black davidmkelly.com "Speed is often confused with insight." - Johan Cruijff |
07-11-2007 | #5 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Antifreeze
I use the napa brand. they have ot 2 ways 50/50 or you mix. i run 30% anti freeze 2 bottles of water wetter and distilled water.
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07-11-2007 | #6 |
Join Date: Feb 2006
Location: San Antonio area
Posts: 1,179
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Re: Antifreeze
take a look at
http://theoildrop.server101.com/foru...=0&Board=UBB37 for about 50 pages of opinion - and some realistic arguments too. I've heard that Dex-Cool causes less erosion of the water pump impeller and seal. I've been using the Havoline stuff after flushing with "distilled" water from Wal-Mart for 10 years. No problems yet. |
07-12-2007 | #7 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Antifreeze
you have been using this in your zr1 for 10 years>?
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07-12-2007 | #8 |
Join Date: Sep 2005
Location: Ontario, Canada
Posts: 204
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Re: Antifreeze
Your in Canada...Go to TSC they have the proper non DEX prestone green antifreeze in 10 liter jugs. It is still used for farm equipment.
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07-12-2007 | #9 | |
Join Date: Jul 2004
Location: Sudbury, Ontario. Canada
Posts: 1,538
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Re: Antifreeze
Quote:
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1991 #1516 Black/Black davidmkelly.com "Speed is often confused with insight." - Johan Cruijff |
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07-12-2007 | #10 | |
Join Date: Feb 2006
Location: San Antonio area
Posts: 1,179
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Re: Antifreeze
Quote:
of the success is to completely purge air from the system which is a bit time consuming for a shop to do - you need to temp cycle the system several times to get all the air out, plus you need to have a working pressure cap to pull coolant from the fill tank when it cools off. Glenn 91-1341 |
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