So yesterday we were talking our other truck to drop it off at the dealer and my fiancé have to stop and get fuel and go to the store so I was killing some time and started the truck up and let it warm up and went and picked some stuff from the garden. Came back and truck had died. Truck wouldn’t start so I I go to change fuel filter and right be for I do that I check the oil. No oil on dip stick. Add a gal and a half and we are off going down the road. Well I took about 130 mile trip and I had to add another 4 gal during this. There is t 4 gal worth of oil on the ground and not 4 gal worth of oil going out the tail pipe. I’m thinking injector o rings and the oil is just mixing with fuel and being returned to tank. Does this seem to be the correct assumption?