color isn't always the best indicator, and neither is time. i just go by mileage, and what type of driving it saw. obviously you're going to be able to put a lot more highway miles on it than if you're doing a lot of stop and go city driving.

3000 mile oil changes are bogus though, my old '84 recommended 10k intervals under normal conditions.

'79 sport 4x4 longbed <img src="/forums/images/graemlins/smile.gif" alt="" />
20/22R hybrid with EB's OS valves, 268c cam, offy intake, weber 32/36, thorley header, 5 speed swap, 34" LTBs, downey 3" springs, marlin hysteer, 4.88s and locked

'91 4x4 shortbed
22R-E, W56, the dd!