Next message: Jan Guthrie: "Re: lv-ab: Starting a Yanmar 2GM20 in REALLY cold weather"
This was a common recommendation for new engines because the synthetic oils
were so good at eliminating friction that the bearings and rings would fail
to "wear in" so they didn't use the whole bearing surface and the piston
rings didn't seal well. They suggested using a regular oil until at least
the first oil change.
Colin Foster,
----- Original Message -----
From: "Ron Rogers" <>
> Yanmar tech support told me that Yanmar permits synthetic engine oil
(only)
> after 250 hours runtime.
>
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