Saturn Sky Forums: Saturn Sky Forum - View Single Post - GM Owners Steaming Over Dex-Cool
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post #12 of (permalink) Old 06-15-2019, 04:53 PM
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Never had a problem with Dexcool in vehicles with pressurized recovery tank cooling systems. It was only ever an issue when the transition to Dexcool happened and GM switched cars without pressurized recovery tanks over to the new formula. As above, when exposed to air it turns into sludge. Keep the system closed and it works fine.

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