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Old 09-24-2012, 05:38 PM   #49
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Joined: Apr 2010
Location: Baking in AZ
Oddometer: 1,888
Originally Posted by ragtoplvr View Post
Try my old lawnboy mower (1956 model) at 16 to one. It will live at 24 to one but no less. It has plain bearings. You can not lean it much. At least you do not get mosquito bit. It did stop the homeowners association from pestering me about mowing every 4 days.

The point is, most of us do not know what other things the mfg does to an engine to use lean oil mixtures. If it originally was listed at 50 to one, 32 to one or whatever, you do not know if it is compatible with 100 to 1 synthetic. Not worth it to me.

I have heard about some old outboards that were plain bearings as well. They need the 16:1 to live. You can tell they have been on the water as the oil sheen keeps the mesquito larvi from breathing, further reducing the mesquito population.
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