This is currently from an engine I have just pulled (As of 3:15 on 10-12-05) from an E-250 with the Triton 5.4L V-8 (Ford). As you can see - they suffered from a lack of oil causing the friction bearing to spin in it's hole. Pretty messy sight huh? All this could of been avoided if they just changed the oil. When I pulled the oil pan to be able to see what's going on - it was all Sludge (Very, very thick) and WAX.
So - please - even if is from that place down the street charging $10 - get your oil changed!!! You'll save abundle (This job [removing and installing the engine] is going to run around 20 hours...)
Hope this helps - and gives some of you an insite to your vehicle!!