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Best/Correct coolant to use..

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Old 09-01-2016, 11:11 AM
kickasscadillac's Avatar
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Location: Plymouth, WI
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Question Best/Correct coolant to use..
Going to flush the coolant on my 99 Eldorado. What is the correct coolant to use? The GM Dexcool or the regular green Prestone? I know it needs 50/50 also but can a guy run like 60/40 being up here in Wisconsin winters? Good advice is appreciated...Thanks
 
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