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robertz6

Neighbors gas 8 octane over recommended?

robertz6
11 years ago

I was walking by today when a neighbor was trying to get his Craftman walk behind mower started. He said the plug was new and he was running it without a filter (which I never did).

But the point I had a question about was the octane, I imagine the manual says 87 octane for the Sears, he said he went to premium (I guess 93 octane). If higher octane runs the engine hotter, is this enough to shorten engine life?

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