Drain and change Dex-Cool Generator Coolant

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Cliffm
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Drain and change Dex-Cool Generator Coolant

Post by Cliffm »

Anyone drain and change their Dex-Cool Generator coolant? I have a Kohler 7.3E and the overflow tank coolant color looks more brown than orange.

Is there a drain plug or other trick to draining most of the coolant from the Generator, before topping it off with "fresh orange" Coolant.

As always, informative suggestions much appreciated.

Cliff
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Cliffm
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First Mate
Posts: 160
Joined: September 27th, 2018, 6:21 pm
Vessel Info: 2006 Carver 36 MY
"the Condo"
VP 8.1Gi-F
Location: Renton WA
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Re: Drain and change Dex-Cool Generator Coolant

Post by Cliffm »

Based on input from forum member, I'm going forward with utilizing a hand transfer pump, first sucking out as much of the old coolant as I can, then reversing the pump to transfer fluid into the generator, first via the radiator cap, and then thru the "air bleed" plug hole via a poly/barb adaptor, hopefully drawing out air and stopping when I get fluid.

So far I've gathered Transfer pump via Harbor Freight, and pipe plug adapter via Ace Hardware, 50/50 DexCool coolant AutoZone.
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