I have a 2001 Tahoe, assembled in Windsor Canada.
It has 209,000 miles and runs perfectly. There’s a couple of rattles...burns a little oil...and needs shocks.
I didn’t even get a single dealer service on it and the plugs have never been replaced.
My 2004 GMC has 304,000 and uses no oil but definitely needs shocks!! I replace the plugs every 100,000 or so but didn’t replace the plug wires until 210,000 even though it was running fine.
Truck still has the factory front brake pads, oxygen sensors, A.C.compressor, starter, alternator, top and bottom radiator hoses (asking for trouble on those), and fuel pump. Gas gauge quit working a couple years ago but until the fuel pump goes out I’ll just keep filling it up and zeroing out the trip meter.