Our 1980 ish Datsun 5000lb forklift we bought for the shop with a bunch of other equipment we needed. It has a SD22 Nissan Diesel. It’s in pretty rough shape and we have to fix a few issues it has from previous neglect. It did not run when we pulled it over from the other shop. But now it does, still unfortunately has a blown head gasket. We replaced the fuel filters and cleaned the injectors, lines, and the tank. Also changed the oil and filter. The transmission fluid and filter. The hydraulic filter as well. It runs decent and is easier to start now.