Well I guess I am one of those idiots, but we do own ours....that is pretty cool that you can tell the oil quality by eye "it looks prettty dirty"...Can you gap spark plugs by eye as well? Last time I checked, oil after 5k miles SHOULD look dirty to the eye...it means it is doing its job...
'11 X3 2.8 MS/Mojave
'11 Jeep GC Overland Summit 5.7L
'08 Super Duty Power Stroke (retired)
'07 MB ML CDI (retired)
'04 Toyota Solara convertible (retired)
'03 Range Rover HSE (fired)