I have a 2001 Jeep Cherokee with 261,000 miles. It has been the best, most reliable vehicle I've ever owned.
I bought it used from a guy I knew who bought it new. Other than needing oil changes, greasing the suspension, front pads and rotors, shocks, spark plugs, tires and a battery here and there it just keeps on going and going. Other than that it got a new track bar at 80000 miles, a head job at 160000 and radiator at 261000 miles.
The last years of these apparently used stiff valve springs that cause problems with the valve seats. That's why my head came off. The mechanic who did the work couldn't believe it was the original engine. It doesn't burn oil and barely drips anything. The Jeep has always had BFG A/T KO's and they last 50-90Kmi depending on how many highway miles I'm driving.
My check engine light was on so long it finally burned out this summer. Back in 2008 when I had the head done, the mechanic determined the EVAP codes were because of nearly rotted through rubber fuel fittings below the drivers door. The other codes have been for "weak catalyst" but for enhanced emissions testing it scores well below the limits.
What it uses in gas my Subaru used in parts.