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★ Top Pick
Honda Pro Honda GN4 Motor Oil - 10W30-1 Quart/-
Honda's GN4 10W-30 is a sensible match for the Wave Alpha 110, since Honda specifies 10W-30 for that engine and this oil is formulated for small Honda four-strokes with wet clutches, meaning it won't cause clutch slip the way some car oils can. The one-quart bottle covers a full oil change with a little left over. Caveat: it's conventional, not synthetic, so you'll need to change it more frequently in hot or stop-and-go riding conditions.
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