My son was driving this around this morning(I was riding along), taking salt blocks to cattle. We went around a corner and we suddenly lost power. He kept putting it in neutral, then drive, and I asked him if it was the tranny or motor. We kind of coast into our small town, and the truck died. Before it died, he said the oil pressure gauge was jumping around. Got out to check, and noticed a stream of oil we left on the road behind. Popped the hood, and there was oil over the engine. I couldnt tell where it was coming from, but checked the dipstick, and there wasnt any oil on it! :-( Pulled it into a local shop today, told the mechanic to check it out, and see what had happened. This just turned over 250K about a month ago, but has ran flawlessly. Any ideas?