Specification for Dex Cool
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Specification for Dex Cool
I'm coming up to a flush and refill on the coolant and I've been trying to find a substitute here in England as no one seems to sell Dex Cool.
I've found a Havoline product (Texaco) that meets GM6277M and I'm pretty sure its the one I need. Despite searching the Forum and looking through the Shop manual I can't seem to find confirmation other than on a couple of other Forums.
Can anyone confirm that GM6277M is the one I need? I'd just feel happier with a sanity check from my Forum buddies.
I've found a Havoline product (Texaco) that meets GM6277M and I'm pretty sure its the one I need. Despite searching the Forum and looking through the Shop manual I can't seem to find confirmation other than on a couple of other Forums.
Can anyone confirm that GM6277M is the one I need? I'd just feel happier with a sanity check from my Forum buddies.
Racer
Joined: May 2006
Posts: 317
Likes: 0
From: Austin, Why are they tolling roads that are already paid for, Texas
From the back of the jug.
"Prestone Extended Life 5/150 Antifreeze has been approved by General Motors to be licensed as a DEX-COOL product under the GM 6277M specification"
"Prestone Extended Life 5/150 Antifreeze has been approved by General Motors to be licensed as a DEX-COOL product under the GM 6277M specification"
Thread Starter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
