Dexcool
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Re: Dexcool (skidmarc)
To my knowledge, there are not two versions. Initially red, the coolant does take on an orange-ish color as it ages. Made by Texaco for GM, you can get it cheapest at Wal Mart. The Prestone stuff is not the same, and last I knew, did not meet GM specifications.
Instructor
Joined: Nov 2002
Posts: 244
Likes: 12
From: IL
Re: Dexcool (skidmarc)
Humm................I bought prestone a couple of months ago.
GM Dex-Cool Approved was printed on the container.
Anyone else got any info supporting a difference between
Prestone and Texaco?
:seeya
GM Dex-Cool Approved was printed on the container.
Anyone else got any info supporting a difference between
Prestone and Texaco?
:seeya
Le Mans Master
Joined: Apr 2002
Posts: 6,927
Likes: 3
From: Glendale NY
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18- '19
Re: Dexcool (vettenuts)
:iagree:
Made by Texaco for GM, you can get it cheapest at Wal Mart. The Prestone stuff is not the same, and last I knew, did not meet GM specifications.
________________________________________ ________________________
I changed mine after 76,000 miles.
Made by Texaco for GM, you can get it cheapest at Wal Mart. The Prestone stuff is not the same, and last I knew, did not meet GM specifications.
________________________________________ ________________________
I changed mine after 76,000 miles.
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
Re: Dexcool (skidmarc)
Marc,
I would like to suggest that you and other forum members take a look at Evans NPG+ coolant - www.evanscooling.com . I was informed about it by Ron Davis Racing Radiators and Darton Sleeves. Both RDR and Darton strongly recommend against DEXCOOL. They cite problems with it's useful life, and what it does to aluminum parts if left in a cooling system too long.
Evans coolant is a LIFETIME coolant. You do not mix it with water. I installed it in my Z06 cooling system when I installed my Ron Davis Racing radiator.
I would like to suggest that you and other forum members take a look at Evans NPG+ coolant - www.evanscooling.com . I was informed about it by Ron Davis Racing Radiators and Darton Sleeves. Both RDR and Darton strongly recommend against DEXCOOL. They cite problems with it's useful life, and what it does to aluminum parts if left in a cooling system too long.
Evans coolant is a LIFETIME coolant. You do not mix it with water. I installed it in my Z06 cooling system when I installed my Ron Davis Racing radiator.
Le Mans Master
Joined: Dec 2001
Posts: 5,761
Likes: 1
From: Irvine CA
Re: Dexcool (vetterdstr)
They have been having problems with Dexcool... I am not using it on my new LS6 blower motor... :nono:
VR :cheers:
VR :cheers:
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Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: Dexcool (c5chris)
They have been having problems with Dexcool... I am not using it on my new LS6 blower motor... :nono:
VR :cheers:
I stopped using Dexcool altogether. Im using distilled water and Redline Water Wetter only. This was after a few people I talked to had problems with their Dexcool turning into sludge. These are car people who regularly check their cars and not people who ride their cars to the ground.
VR :cheers:
I stopped using Dexcool altogether. Im using distilled water and Redline Water Wetter only. This was after a few people I talked to had problems with their Dexcool turning into sludge. These are car people who regularly check their cars and not people who ride their cars to the ground.
thanks
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Re: Dexcool (kewlbrz)
Sludging is caused by low coolant, period. There have been several papers presented on this at the automotive trade seminars, two of which I have previously posted in an effort to stop mis-information. A three year study has bore this out. One problem you can run into with Dexcool is not using a 50/50 mix, the corrosion protection is reduced and can be ineffective at lower levels.
I have changed all my cars to Dexcool including my 89 Suburban and 89 Bonneville. Inspections of the block and radiator using a boroscope show they are completely clean and I have no problems.
As for problems with aluminum, the ph of Dexcool is designed for aluminum.
I have changed all my cars to Dexcool including my 89 Suburban and 89 Bonneville. Inspections of the block and radiator using a boroscope show they are completely clean and I have no problems.
As for problems with aluminum, the ph of Dexcool is designed for aluminum.
