What Antifreeze???
Racer
Joined: Aug 2005
Posts: 308
Likes: 0
From: Salem MA
I recently had a weird experience with coolant. I just installed my freshly built 496", freshly cleaned/rodded oem radiator and used Peak brand pre-mixed 50/50 coolant. I put in the 6-7 gals it takes to fill the system and drive it about 100 miles within a couple weekends. Then I had to drain the coolant out to repair a radiator leak that I inflicted with the shroud installation. Upon draining the coolant, it was all brown and chitty looking...I pulled the drain plugs out of the block out of curiousity and on one side the water wouldn't even drain out until I ran a screwdriver into the hole to break up the blockage..
I don't know what the hell happend but this motor was completely clean inside as was the radiator at the time of the coolant install. The pump/hoses/heater core etc was all brand new. I drained it all out and switched to Prestone pre-mixed 50/50 and it seems like it is staying clean. Only have about 50 miles on it though. I have no idea what happened but needless to say I won't be using Peak antifreeze or pre mix ever again.
I don't know what the hell happend but this motor was completely clean inside as was the radiator at the time of the coolant install. The pump/hoses/heater core etc was all brand new. I drained it all out and switched to Prestone pre-mixed 50/50 and it seems like it is staying clean. Only have about 50 miles on it though. I have no idea what happened but needless to say I won't be using Peak antifreeze or pre mix ever again.
its not Peak's fault. no matter how clean you think a motor is inside, it never is. whenever i put in a new motor, the first 20 minutes of break in also include a coolant system filled with water and some radiator quick flush. and every time that initial flush is full of nasty.
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
I run straight green in mine, no water. We don't get to zero, so I'm not too worried about freezing. My engines all cool fine and there's zero rust in any of the water jackets and no corrosion in radiators. It's still clear green after a couple of years, so I leave it alone.
Spilled DexCool doesn't kill cats nearly as quick a good ol' green. That's another good reason to stay away from Dex.
Spilled DexCool doesn't kill cats nearly as quick a good ol' green. That's another good reason to stay away from Dex.
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
I run straight green in mine, no water. We don't get to zero, so I'm not too worried about freezing. My engines all cool fine and there's zero rust in any of the water jackets and no corrosion in radiators. It's still clear green after a couple of years, so I leave it alone.
Spilled DexCool doesn't kill cats nearly as quick a good ol' green. That's another good reason to stay away from Dex.
Spilled DexCool doesn't kill cats nearly as quick a good ol' green. That's another good reason to stay away from Dex.
That is just so wrong! but I still had to laugh!
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
its not Peak's fault. no matter how clean you think a motor is inside, it never is. whenever i put in a new motor, the first 20 minutes of break in also include a coolant system filled with water and some radiator quick flush. and every time that initial flush is full of nasty.
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Most people don't flush their system nearly well enough.
This loosens a lot of the build up in the system and thru the heating/cooling cycles will then suspend it into the coolant.
Make sure you run a neutralizer thru the system after flushing like washing soda.
This loosens a lot of the build up in the system and thru the heating/cooling cycles will then suspend it into the coolant.
Make sure you run a neutralizer thru the system after flushing like washing soda.
Burning Brakes
Joined: May 2004
Posts: 1,100
Likes: 3
From: belle plaine ks
Use as a mix with water
Most people don't realize that anti-freeze also raises the point of boiling for water. That is why running straight water is not a good idea in a car like the c3. The way the radiator lays in the car does not lend itself well to airflow in the first place. But mixing anti-freeze with that helps to alleviate that situation. So mixing does two things, it allows the lowering of the freeze point and raises the boiling point in the summer. If I spent all that money for a product, I believe I would use it to its biggest advantage.
http://www.newton.dep.anl.gov/askasc.../chem03987.htm
http://www.newton.dep.anl.gov/askasc.../chem03987.htm
Thread Starter
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
I thank Dexcool for bringing many many dollars into my shops from cooling system repairs over the years. It was allmost as good as neon did for me with thier head gaskets. I saw what dexcool was all about and I still left that crap in my new 99 S-10 thinking I would flush it every 30,000 instead of the 100,000 GM #.. So after flushing the system with a good machine at 30, 60, 90k.. I now at 115k on the truck have a leaking heater core, a leaking intake gasket and res tank that looks like mud in it.. I guess with cars evolving its allways gonna be something.. oh I forgot astro van idler arms..
Advanced
Joined: Jan 2007
Posts: 96
Likes: 0
From: Sandnes Norway
I have just been told that mixing some different kind of anti-freeze will make your coolant slurry/slushy. He told me that mixing red anti-freeze with blue/green or vise verca will make my system slurry. Blue and green can be mixed, but red should never go into a system with blue or green.
Any of you heard something like this?
Any of you heard something like this?
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Melting Slicks
Joined: Mar 2008
Posts: 2,989
Likes: 198
From: Meriden CT
I have just been told that mixing some different kind of anti-freeze will make your coolant slurry/slushy. He told me that mixing red anti-freeze with blue/green or vise verca will make my system slurry. Blue and green can be mixed, but red should never go into a system with blue or green.
Any of you heard something like this?
Any of you heard something like this?
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
I use Sierra antifreeze from NAPA because i'm worried about my pets gettng into it. These POS C3s are always puking antifreeze and i don't want to pollute.
I've never heard that using pure antifreeze will raise the freezing point. I'm sorry but i think that is BS.
Pure antifreeze will not tranfer heat very well at all. I used pure antifreeze once and the car overheated right away. That's the real reason to mix water in.
I've never heard that using pure antifreeze will raise the freezing point. I'm sorry but i think that is BS.
Pure antifreeze will not tranfer heat very well at all. I used pure antifreeze once and the car overheated right away. That's the real reason to mix water in.
Racer
Joined: Apr 2005
Posts: 259
Likes: 45
From: Columbus Mn
I tried Evans NPGR this summer. I've got nothing bad to say about it. My Motown 400sb with a 671 blower never missed a beat. One of my two cooling fans died, and it ran very hot, but did not boil over. I also like the idea that it contracts as it freezes. If I recall correctly, the NPG+ would be best for a vehicle driven in the winter. I think the NPGR I'm running will thicken when it gets real cold out. I put some in a small glass jar, and kept it in my truck all last winter (MN). It never thickened up noticably. I don't here many people talk about Evans, I just thought I'd give it a try. So far so good.
http://www.evanscooling.com/
I also liked the anti-detonation properties.
http://www.evanscooling.com/
I also liked the anti-detonation properties.
Pro
Joined: Sep 2002
Posts: 624
Likes: 1
From: Melbourne, Fla. 6 months- New Middletown, Ohio 6 months
I recently had a weird experience with coolant. I just installed my freshly built 496", freshly cleaned/rodded oem radiator and used Peak brand pre-mixed 50/50 coolant. I put in the 6-7 gals it takes to fill the system and drive it about 100 miles within a couple weekends. Then I had to drain the coolant out to repair a radiator leak that I inflicted with the shroud installation. Upon draining the coolant, it was all brown and chitty looking...I pulled the drain plugs out of the block out of curiousity and on one side the water wouldn't even drain out until I ran a screwdriver into the hole to break up the blockage..
I don't know what the hell happend but this motor was completely clean inside as was the radiator at the time of the coolant install. The pump/hoses/heater core etc was all brand new. I drained it all out and switched to Prestone pre-mixed 50/50 and it seems like it is staying clean. Only have about 50 miles on it though. I have no idea what happened but needless to say I won't be using Peak antifreeze or pre mix ever again.
I don't know what the hell happend but this motor was completely clean inside as was the radiator at the time of the coolant install. The pump/hoses/heater core etc was all brand new. I drained it all out and switched to Prestone pre-mixed 50/50 and it seems like it is staying clean. Only have about 50 miles on it though. I have no idea what happened but needless to say I won't be using Peak antifreeze or pre mix ever again.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
I use Sierra antifreeze from NAPA because i'm worried about my pets gettng into it. These POS C3s are always puking antifreeze and i don't want to pollute.
I've never heard that using pure antifreeze will raise the freezing point. I'm sorry but i think that is BS.
Pure antifreeze will not tranfer heat very well at all. I used pure antifreeze once and the car overheated right away. That's the real reason to mix water in.
I've never heard that using pure antifreeze will raise the freezing point. I'm sorry but i think that is BS.
Pure antifreeze will not tranfer heat very well at all. I used pure antifreeze once and the car overheated right away. That's the real reason to mix water in.
Last edited by '75; Dec 24, 2009 at 10:13 PM.
Intermediate
Joined: Oct 2009
Posts: 30
Likes: 0
I replaced my Dexcool with "Peak Global Lifetime" in my C5 -01
It works in both aluminium and cast engines.
http://www.peakantifreeze.com/
It works in both aluminium and cast engines.
http://www.peakantifreeze.com/
