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GH85Carrera GH85Carrera is online now
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Join Date: Nov 2007
Location: Oklahoma
Posts: 86,138
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I have never worried much about my coolant aging out. I have had my El Camino 27 years. It came with a too small 2 core radiator that was taxed to the max on a normal hot day, in in really hot weather it would not keep up. I replaced it with a high quality 3 core, and never have overheating issues unless I sit at idle in really hot weather for longer than 10 minutes.

I change out my antifreeze every 24 months or so. I change it the fall. Plain old Prestone green fluid, cheap and available anywhere. After 20+ years and 300,000 miles the radiator has no corrosion, and looks great inside.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
Old 08-26-2019, 06:11 AM
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