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Now the question is, how often is the recommended mileage to change it? I've always changed the Honda GN4 Oil every 4k. Thanks for all the responces in advance.
Verdayne aka Wingnut
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I just finished a 5000 mile ride to CA and back on HP4 and it did fine - looked ok and no usage. I am planning on changing oil and filter at 5000 miles from this point on. I assume you got the HP4 without Moly.
 
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