| Cooling | A dribbling telltale you call normal | The stream read like a gauge, impeller on schedule |
| Salt | Rinsed when there is time | Flushed every trip, before the crystals set |
| Corrosion | A stub anode and a chalky bracket | Anodes changed at half, castings still bright |
| Fuel | Ethanol left in the tank all winter | Treated, filtered, water caught before the injectors |
| The lower unit | Gear oil changed when it sounds wrong | Changed and read, so water shows as a colour |
| The trailer | Bearings until they fail on the motorway | Repacked on schedule, like part of the engine |
| Resale | No record and a nervous buyer | A compression figure and a log behind the price |