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Old 03-12-2018, 01:12 PM   #4
kchace's Avatar
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,469
Originally Posted by KapnKarl View Post
Hi gang,
Can someone provide a recommendation for coolant to use in a Lehman SP135 as well as recommended time between flushes. I did some searching of the forum but didn't get any hits, though I might not have used the right keywords in the search. I've heard people say some extended life coolants can clog up cooling passages under certain conditions, even with reasonable flush cycles, which I wouldn't have expected to hear. In any case, any/all input is greatly appreciated.

The manual does not specify any particular type. There are enough reports of various incompatibilities with extended life AF and I think it encourages lack of maintenance, so I stay away from it. I use standard yellow bottle Prestone. 5 gallons per engine. Check concentration before and after layup. Drain, flush and replace every few years.

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