2006 Grand Prix coolant

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G-594287

I just bought a 2006 Grand Prix and the coolant is green. I noticed on the overflow tank it says dexcool. Is this a problem
 

melsg5

Staff member
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It depends on whether the prior owner used a green coolant compatible with dexcool. If it was me, I would flush the system and make sure I had a full dexcool compatible coolant in the cars system.
 

melsg5

Staff member
SUSTAINING MEMBER
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you appear to have two posts with the same question
 
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