First off, the Chevy dealer changed radiator fluid in my 1995 GMC and used Dexcool which wasn't listed by name on the service order. Then I changed out the thermostat and topped it off with regular 50/50 antifreeze. Is it going to blow up?
The other day coming back from down the hill it was 101º and I had both front and rear A/C on and the temp gauge showed 250º. Would it help if I change out the clutch fan? I didn't hear the electric fan in front of the radiator.