[Z06] Antifreeze
Thread Starter
Racer
Joined: Apr 2004
Posts: 260
Likes: 0
From: Wyoming NY
Antifreeze
I purchased a 2003 ZO6 with 14,000 miles in August. I live in Western New York and the winter weather has arrived. I check the Dex-Cool antifreeze last evening to determine the freezing point and it is good to 20 below "0". I have heard that Dex-Cool antifreeze is very corrosive and that many owners have changed to the older type of antifreeze. Are there any members that have changed their antifreeze from the Dex-Cool antifreeze?
Thanks for any advise!
Ray
Thanks for any advise!
Ray
Race Director
Joined: Oct 2002
Posts: 10,864
Likes: 196
From: Southern CA
I purchased a 2003 ZO6 with 14,000 miles in August. I live in Western New York and the winter weather has arrived. I check the Dex-Cool antifreeze last evening to determine the freezing point and it is good to 20 below "0". I have heard that Dex-Cool antifreeze is very corrosive and that many owners have changed to the older type of antifreeze. Are there any members that have changed their antifreeze from the Dex-Cool antifreeze?
Thanks for any advise!
Ray
Thanks for any advise!
Ray
Safety Car
Joined: Sep 2002
Posts: 4,030
Likes: 6
From: Maryland
How often do you change the green stuff? the Dexcool? I used to think every 3 years but I've pushed that to 4 with my current car with no issues.
Race Director
Joined: Oct 2002
Posts: 10,864
Likes: 196
From: Southern CA
Green I used to do 2-3 years,
Orange 4-5 years.
But you still need to LOOK at it & test it (I do annual). Test kit at pep boys etc.
Intermediate
Joined: Feb 2005
Posts: 27
Likes: 0
I heard Dex-Cool is very corrisive. I know cadillac has had problems with dex-cool and intake manifold gaskets failing. Also heard other GM intake gasket problems. I changed the vette after 5 years per my cadillac mechanic friend's advice.
Drifting
Joined: Apr 2000
Posts: 1,390
Likes: 36
From: INDIANA
Thats bull, the problems some had with gaskets was the gaskets problem, not Dexcool. Just changed the Dexcool first time in my 6 yr old '03 Z06, clear as can be. I installed Dexcool in my 92 LT1 Corvette in 1996, just after Dexcool came out. Just changed it for the first time last weekend, clean and no corrosion, 30,000 miles and 12 years in car. Original hoses too, been raced in Silver State Classic 5 times. I gotta say I am pleased with Dexcool.
Melting Slicks
Joined: Dec 2003
Posts: 2,334
Likes: 11
From: las vegas nv.
Thats bull, the problems some had with gaskets was the gaskets problem, not Dexcool. Just changed the Dexcool first time in my 6 yr old '03 Z06, clear as can be. I installed Dexcool in my 92 LT1 Corvette in 1996, just after Dexcool came out. Just changed it for the first time last weekend, clean and no corrosion, 30,000 miles and 12 years in car. Original hoses too, been raced in Silver State Classic 5 times. I gotta say I am pleased with Dexcool.
Melting Slicks
Joined: Sep 2005
Posts: 2,568
Likes: 264
From: Near Charlotte NC
As a general rule I change the Anti-freeze every 2 years in all my cars.Probably don't need to,but what the heck....
The others fluids I do this:
Oil & Filter=3k or 3mos
Brake & Clutch Fluid=same as O&F
Trans & Diff fluids=every 12k or once a year
Power Steering=same as Trans/Diff
Fluids are still fairly cheap....Piece of Mind=Priceless
\db2
Carolina
The others fluids I do this:
Oil & Filter=3k or 3mos
Brake & Clutch Fluid=same as O&F
Trans & Diff fluids=every 12k or once a year
Power Steering=same as Trans/Diff
Fluids are still fairly cheap....Piece of Mind=Priceless
\db2
Carolina
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Race Director
Joined: Oct 2002
Posts: 10,864
Likes: 196
From: Southern CA
will be hard to kill off.
Melting Slicks
Joined: Aug 2005
Posts: 3,398
Likes: 2
Its friggin antifreeze. Spend $20 a year and change it if there is concern of it being bad over a few years. It ain't rocket science.
I just changed mine after 42K miles and 5 years and it still looked brand new and when I tested for electrolysis it was also fine. I wouldn't have even changed it cept I swapped out the thermostat and lost most of it anyway.
Last edited by briann510; Nov 20, 2008 at 06:45 PM.