Can you say "Electrolysis"?........
coolant looks black
Postmaster
Joined: Feb 2004
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From: Levittown
Rusty is no good also.
Shows sign of no/poor maintenance.
Bad for a PSD due to the need for SCA levels.
Bill
Shows sign of no/poor maintenance.
Bad for a PSD due to the need for SCA levels.
Bill
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From: Ellensburg, Washington
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Joined: Sep 2007
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From: Medford Oregon
Some coolants are green, red, brown ... etc. Do you know for a fact you put in a particular coolant (color) and it has changed or what? I'm not a coolant expert but there is so much stuff out there who knows !!
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
But it been a long time since these truck came from the factory! You never know what people have put in them. My coolant is clear to goldish..........
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Cowboy Steve
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Joined: Oct 2003
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From: Madison, WI
Goldfish in your coolant? 
(Sorry; nevermind.)
"Rustie" could mean someone once put GM Dex-Cool or one of its look-alikes in it. Or it could mean the SCA has been ignored/neglected, and there's cavitation.
(Sorry; nevermind.)
"Rustie" could mean someone once put GM Dex-Cool or one of its look-alikes in it. Or it could mean the SCA has been ignored/neglected, and there's cavitation.