Jump to content
CaddyInfo Cadillac Forum

Approved Dex-Cool providers


Recommended Posts

And the Prestone product that is labeled as Dex-Cool made the list.

I have a pdf file of the GM Service Bulletin that lists all the approved providers but it is slightly too large to load here.



Drive your car.

Use your cell phone.


Link to comment
Share on other sites

The following is the much-edited (by JimD) meat of the first page of the bulletin.

The text below is verbatim and not taken out of context:

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Bulletin number: 00-06-02-006C

Date: May 2006

Subject: DEX-COOL (Trade Mark) Engine Coolant Information

Models: 2007 and Prior GM Passenger Cars and Trucks (Including Saturn)

2007 and Prior HUMMER Vehicles

2005-2007 Saab 9-7X

Following in Table 1 are the only current licensed

and approved providers of DEX-COOL. Products

that are advertised as "COMPATIBLE" or

"RECOMMENDED" for use with DEX-COOL have

not been tested or approved by General Motors.

Non-approved coolants may degrade the coolant

system integrity and will no longer be considered a

5 yr./150,000 mile coolant.

Table 1 - Approved and Licensed

Providers of DEX-COOL Products Meeting

General Motors GM6277M Specifications






GM Vehicle Care

AC Delco

And selected (by JimD) items from page 3 of the Bulletin:

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Sealing Tablets

Cooling Systen Sealing Tablets (Seal Tabs) should

not be used as a regular maintenance item after

servicing an engine cooling system. Discoloration of

coolant can occur if too many seal tabs have been

inserted into the cooling system. This can occur if seal

tabs are repeatedly used over the service life of a

vehicle. Where appropriate, seal tabs may be used if

diagnostics fail to repair a small leak in the cooling

system. When a condition appears in which seal tabs

may be recommended, a specific bulletin will be

released describing their proper usage.

Water Quality

The integrity of the coolant is dependent upon the

quality of DEX-COOL and water. DEX-COOL is a

product that has enhanced protection capability as

well as an extended service interval. These enhanced

properties may be jeopardized by combining

DEX-COOL with poor quality water. If you suspect

the water in your area of being poor quality, it is

recommended you use distilled or de-ionized water

with DEX-COOL.


Drive your car.

Use your cell phone.


Link to comment
Share on other sites

As a personal note, I could care less about the "discoloration" mentioned under Sealing Tablets. I do and will continue to use a similar product and the discoloration tells me I have installed "at least enough" of the product to be protected against nuisance leaks.


Drive your car.

Use your cell phone.


Link to comment
Share on other sites

I didn't see Texaco on the list - Texaco/Havoline was the OEM supplier that worked with GM to develop DexCool.

'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...