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Old 07-10-2012, 15:32   #1
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Join Date: May 2010
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Yanmar Coolant replacement

Hi there,

yes I googled and uses the search function: So far I know Mack Boring recommends for Yanmar Texaco Long Life Coolant, Havoline Extended Life, Dex-Cool Long or Prestone Extended Life Coolant. (

So far so good, the problem here in Grenada is I just get Starbrite Star*Cool or Shell Zone or Shell Rotella ELC. All of them claim to be safe for Aluminium and since I do not know what was used before I need to flush anyway.

Any recommendation with this limited choice? Many Thanks.
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Old 07-10-2012, 16:19   #2
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Location: U.S., Northeast
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Re: Yanmar Coolant replacement

My factory authorized Yanmar dealer installed Rotella ELC in my new engine four years ago and I have used it since with no ill effects.
The future ain't what it used to be.
-- Yogi Berra, 1925-2015
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