Yes, you do. At A&L MARINE SURVEYORS, LLC, we have gas and diesel computers that tell about outboards, inboards, and modern diesels. Normal surveys don’t cover these. Without a complete survey, you could be spending thousands more after you purchase the boat you shouldn’t have bought in the first place! We have looked at more low-hour engines and many have the same or more problems as old engines. “IF I DON’T USE LOSE IT NO MAINTENANCE DOES NOT HAPPEN PARTS CORRODE INTERNALLY and FREEZE, HOSES COLLAPSE, Hose clamps rust out, BATTERIES DIE, ALTERNATORS FREEZE, BELTS DRY OUT, TURBOS DIE, GAS ENGINES TURN TO SHELLAC, DIESEL GASKETS DRY OUT.” So bottom line – they all need to be inspected.