In Search of Better Filters

Engine air filters and crankcase vents seldom get enough attention.

Presumably, air cleaners are about dusty environments, and dust is a rare thing on the water. But is the engine room actually clean? We’ve seen a lot of dust from V-belts and insulation. Salt mist settles on every surface. In PS oil filter testing (see “Marine Oil Filter Comparison,” PS July 2019), we learned that […]
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