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Old 06-26-2019, 02:48 PM   #5
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Location: Coral Springs FL
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Default Re: 59AB Cooling System Advice Needed from the Experts (not an overheating issue)

I may be wrong but, back when these engines were produced the speed limit was quit a bit lower than what we consider normal today. I'm guessing 55 MPH was about the norm considering the roads. Could it be that today's highway speeds have something to do with coolant overflow?
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