Swapped out the oil sending unit with a new one today. The old sending unit only worked when it wanted to, so a new one was a cheap, easy fix. I also fixed an issue I was having with the directional light in the speedo when the turn signals where turned on. Outside turn signal lights worked fine, emergency flashers worked fine, but the directional light in the speedo only worked with the emergency flashers, not the turn signals. Modified the wiring to the flasher relay to fix the problem, now everything works as it should.