Replace antifreeze
Thread Starter
Cruising
Joined: Oct 2005
Posts: 12
Likes: 0
From: Maricopa Arizona
Replace antifreeze
I have a 1998 Vett. I bought it used with just 6000 mi on it back in 1999.so I've had it for a while.In that time I've had a couple small problems,but thanks to all of you in forum they have stayed small.I only have 30,000 mi on it now.I know thats not a lot but I would like to change the antifreeze just because its ten years old.I am a maint.man by trade, but I've never changed antifreeze on a newer car before, so I would like to know how to do this before I start. Thanks.
PHOTOSHOP SPECIALIST
Joined: Aug 2007
Posts: 16,433
Likes: 40
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Hey Bill, Congrats on your '98 Vette & Welcome to the Corvette Forum! 
You might want to post your question on changing the antifreeze in the "C5 Tech" section of our forum - our knowledgeable members there will be glad to help you.
http://forums.corvetteforum.com/foru...ysprune=-1&f=1
In case you need an 1998 Owner's Manual, here's a link to the PDF version:
https://www.mygmlink.com/pdf/go2cont...98corvette.pdf
Take care!!
You might want to post your question on changing the antifreeze in the "C5 Tech" section of our forum - our knowledgeable members there will be glad to help you.
http://forums.corvetteforum.com/foru...ysprune=-1&f=1
In case you need an 1998 Owner's Manual, here's a link to the PDF version:
https://www.mygmlink.com/pdf/go2cont...98corvette.pdf
Take care!!
Race Director
Joined: Apr 2007
Posts: 19,542
Likes: 523
From: Ideals are peaceful...History is violent...St.Charles, MO.
2020 Corvette of the Year Finalist (appearance mods)
C5 of Year Winner (appearance mods) 2019
St. Jude Donor '08-'09-'12 thru'22
Welcome to the Forum!!!
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
dexcool DOESN'T LAST 10 years
Change it NOW. Flush iit well. Plain water till it runs clear. NO CORROSIVE FLUSH ADDITIVE. Search on dexcool and you will see MANY problems on here. 
BIGHANK
BIGHANK
Tech Contributor
Joined: Jan 2007
Posts: 19,354
Likes: 1,126
From: Dyer, IN
Yep, it's time to change it alright. It's about 5 years past due.
Last edited by lucky131969; Feb 21, 2008 at 02:59 PM.
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Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
In C5 Tech, click on search this forum (in the red banner) using keywords "antifreeze" or similar. You'll find plenty to read.
Many elect to continue to use oem type DEXCOOL (or similar orange extended life products) for it's friendliness to aluminum (and the environment, animals, etc). Past issues with it were related to poorly maintained coolant systems, gaskets and GM added tablets...since improved upon by GM.
If you chose to switch to green, you'll have to make more frequent annual changes.
It's your car to do with as you please.
BTW, I found this which might be helpful to you...
http://forums.corvetteforum.com/show...ght=antifreeze
Many elect to continue to use oem type DEXCOOL (or similar orange extended life products) for it's friendliness to aluminum (and the environment, animals, etc). Past issues with it were related to poorly maintained coolant systems, gaskets and GM added tablets...since improved upon by GM.
If you chose to switch to green, you'll have to make more frequent annual changes.
It's your car to do with as you please.
BTW, I found this which might be helpful to you...
http://forums.corvetteforum.com/show...ght=antifreeze
Last edited by hotwheels57; Feb 21, 2008 at 04:14 PM.
Safety Car
Joined: May 2003
Posts: 3,814
Likes: 105
From: Dearborn Heights Michigan
Anti-Freeze should be changed every 5 years. I took my 2000 to a dealer who chemically flushed the system and refilled. I know this is an expensive route but it gave me peace of mind.
Instructor
Joined: Aug 2006
Posts: 230
Likes: 0
From: St. Louis MO
AMS OIL Antifreeze
I put the gold stuff from AMS Oil in the vette last year. My car is an
'01 Z that I bought in Oct of '06. I was not sure how old the coolant
was. When I tested the old coolant it was still good. I decided to
change it anyway. The AMS Oil stuff says it is good for 7 years and is
environmentaly freindly. Good luck!
Rob
'01 Z that I bought in Oct of '06. I was not sure how old the coolant
was. When I tested the old coolant it was still good. I decided to
change it anyway. The AMS Oil stuff says it is good for 7 years and is
environmentaly freindly. Good luck!
Rob
Thread Starter
Cruising
Joined: Oct 2005
Posts: 12
Likes: 0
From: Maricopa Arizona
Thread Starter
Cruising
Joined: Oct 2005
Posts: 12
Likes: 0
From: Maricopa Arizona
In C5 Tech, click on search this forum (in the red banner) using keywords "antifreeze" or similar. You'll find plenty to read.
Many elect to continue to use oem type DEXCOOL (or similar orange extended life products) for it's friendliness to aluminum (and the environment, animals, etc). Past issues with it were related to poorly maintained coolant systems, gaskets and GM added tablets...since improved upon by GM.
If you chose to switch to green, you'll have to make more frequent annual changes.
It's your car to do with as you please.
BTW, I found this which might be helpful to you...
http://forums.corvetteforum.com/show...ght=antifreeze
Many elect to continue to use oem type DEXCOOL (or similar orange extended life products) for it's friendliness to aluminum (and the environment, animals, etc). Past issues with it were related to poorly maintained coolant systems, gaskets and GM added tablets...since improved upon by GM.
If you chose to switch to green, you'll have to make more frequent annual changes.
It's your car to do with as you please.
BTW, I found this which might be helpful to you...
http://forums.corvetteforum.com/show...ght=antifreeze
Thread Starter
Cruising
Joined: Oct 2005
Posts: 12
Likes: 0
From: Maricopa Arizona
Thread Starter
Cruising
Joined: Oct 2005
Posts: 12
Likes: 0
From: Maricopa Arizona
I put the gold stuff from AMS Oil in the vette last year. My car is an
'01 Z that I bought in Oct of '06. I was not sure how old the coolant
was. When I tested the old coolant it was still good. I decided to
change it anyway. The AMS Oil stuff says it is good for 7 years and is
environmentaly freindly. Good luck!
Rob
'01 Z that I bought in Oct of '06. I was not sure how old the coolant
was. When I tested the old coolant it was still good. I decided to
change it anyway. The AMS Oil stuff says it is good for 7 years and is
environmentaly freindly. Good luck!
Rob