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Bertram31.com General Bulletin Board
Re: Coolant reminder to Yanmar owners
Posted By: bruce In Response To: Re: Coolant reminder to Yanmar owners (mike moran)
Date: Monday, 16 January 2006, at 7:14 a.m.
Yanmar makes its own coolant, and Havoline has Dex Cool.
Anything else and you'll have to read the label.A few things.
Don't mix coolants. There has been studies that say mixing coolants can increase corrosion cause it changes the properties when mixed.So if you have the wrong coolant in, drain it flush with water and fill with water and add a mild cooling system flush.
Follow directions and then flush again real good.
Drain water and mix according to the protection you need in your geographic location.In the non freezing climates a 50/50 mix is fine.
A word about Dex Cool. Some ambulance chasers are looking to sue GM saying Dex Cool corrodes the inside of the engines. Don't know anything about it.
I havn't seen a problem in Yanmars if:
1. You keep fresh zincs in the cooling system.2. Change coolant every 3 to 4 years when you rot out the heat exchangers.
Before pulling the exchangers out, drain and fill with water and use a mild cooling system flush to clean the inside of the engine. Then flush with water before pulling heat exchangers.3. If you have any overheating, drain flush and fill the coolant. Overheating changes the chemical properties.
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