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Reply to "Oil Change Intervals - Why Try To Extend?"

AMSOIL oil and filter once a year up to 15,000 severe miles in my 1993 gasoline motorhome, 2006 BMW K1200LT motorcycle, 2006 Honda Civic Si I-vTec, 1997 Chevy Venture, lawn mower and 1993 Onan generator.

AMSOIL has recommended 25,000 mile/1year oil changes for 38 years and the oil has never failed yet. Works for me.

Used Oil Analyses come back as OK for continued use so considering every 2 years after filter change at one year.
Last edited by timvipond
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