Coolant Change
Thread Starter
Le Mans Master
Joined: Sep 2013
Posts: 8,900
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From: Wisconsin
Coolant Change
I am planning to change coolant next weekend. I have read that in order to get the most coolant out, I need to get it up to operating temps to open the thermostat, turn on the heater and raise the back end. I got an extra petcock in case I have trouble with that. 1/4 in drive ratchet turn 1/4 turn to open. Are there any other tips or things to know before I get started? I am putting Dexcool back in.
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
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I am planning to change coolant next weekend. I have read that in order to get the most coolant out, I need to get it up to operating temps to open the thermostat, turn on the heater and raise the back end. I got an extra petcock in case I have trouble with that. 1/4 in drive ratchet turn 1/4 turn to open. Are there any other tips or things to know before I get started? I am putting Dexcool back in.
Btw, turning the heater on does nothing for draining coolant in this case. C5s have no heater control valve in the system and coolant circulates through the heater core 100% of the time, regardless of where you set the temperature selector ****, unlike old school heater control systems. Don't bother.
