The Kadey-Krogen 58 at 8 knots gets about 1.64 nautical miles per gallon (6.3 liters per nm) powered by twin 158-hp John Deere diesel engines. In her length and weight category, no recreational boat on earth gets more miles per gallon. How does she do it? The answer is somewhat complex, but basically it is because she is a well-designed displacement cruiser. Displacement cruisers are the boats that most people who want to do serious long distance or transoceanic travel choose. If adventuresome folks are looking for a production displacement fiberglass boat, they only have a few choices, and Kadey-Krogen is one of the most formidable. It has been building motoryachts since it introduced the famous 42-footer in 1977. The company’s boats are designed to be live-aboards as well as LRCs, and that adds another degree of complexity to their design.