should I change my Dexcool at 40,000 miles
my dex cool looks good but that doesn't mean anything they say with age
and time . so I have never done a complete Dexcool flush and add new
dexcool . how would this be done the easy way without opening all those
bleed block screws.?
Drain the coolant from the petcock on the bottom of the radiator. Add new coolant to the reservoir/hoses, warm up and add fluid to get to the proper level, then do it again.
Two thing to check (1) freeze protection (2) acidity You can buy an inexpensive tester that will tell you how much freeze protection you have. You can also buy text strips that tell about acidity. If both test pass ok, then just add an additive for water pump lube and antirust.
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