I believe driving an older vehicle gently is the best thing you can do to keep it on the road as long as possible. I almost never "beat on" my old vehicles and rarely push them beyond 3.5K. It probably happens once a year when some fool pisses me off to the point where I floor it to pass them, and then I wish I hadn't have done that. My newest Explorer has around 200k on it and I hope to have it a long time. I am a "grandpa" and this may be the last vehicle I ever own. I live in the south, so the bodies last for ever and I find Ford interiors (other than the driver's seat bottom, which I've recovered) hold up extremely well, no cracked dashes, no sagging headliners no rotted rubber even with the GA sun. I stay on top of maintenance and replace worn parts as needed, so I see no reason I shouldn't get another 100,000 miles out of my Explorer. How man more miles are left in me? IDK, LOL.