Despite my total frustration with the internal coolent leaks on the GMs we've had, my Dad's 98 Blazer is at 205,000 miles. It's taken quite a lot to get there. The interior is literally falling apart, BUT, it's been driven on rough dirt roads in the mountains of CO quite a lot, some VERY rough roads. It's on it's 3rd trans now, the motor knocks pretty good when cold, but it still has good power and gets better than EPA rated fuel mileage. He's keepin it until something major breaks, like another trans. If it had been driven mostly highway miles with no rough dirt roads, it would be in tremendously better shape.
My mom's 99 Olds 88 is a TOUGH freakin car. It's been driven alot on dirt roads as well, some VERY rough, and barely has any squeeks or rattles. Still has the original trans (and trans filter Critic!) with 150K; only major thing was the intake and gaskets, and the upper rad hose. It's been driven to #@$%! and back and I'm amazed with how strongly it seems to be built; I think it will have no problem going to 250K or more.
My mom's 99 Olds 88 is a TOUGH freakin car. It's been driven alot on dirt roads as well, some VERY rough, and barely has any squeeks or rattles. Still has the original trans (and trans filter Critic!) with 150K; only major thing was the intake and gaskets, and the upper rad hose. It's been driven to #@$%! and back and I'm amazed with how strongly it seems to be built; I think it will have no problem going to 250K or more.