These are the engines that power our 43’ DeFever trawler.-Twin Ford Lehman 120 diesels-6 cylinder-manual injection and lift pumps-1.5-2 GPH @ 7-8 knots for us.Clean oil ✅Clean water ✅Clean fuel ⛽️ ✅Do not overheat ✅.Most common maintenance is changing injector pump oil every 50 hours and engine oil and filter every 150 hours.#trawler #fordlehman #lehman120 #boatengine #engineroom #liveaboard #boatfolk #defever