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a_c_homesteader

2 Questions

a-c_homesteader
12 years ago

1. The B&S books say you can use SAE 10W, 10W-30, and 10W-40 down to 0 degrees F. I was wondering what temp SAE 15W-40 can safely be used down to with out any engine start up damage. I like the benefits of a diesel rated oil. This would be for an Briggs 8hp I/C

2. Anybody know why the the aluminum cyl. Briggs engines idle at 1750 RPM and the cast iron and cast iron sleeved engines idle at 1200 RPM?

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