My '98 has 85,000 miles, driven daily, city and highway. Still runs like new. In fact, it runs better than some brand new cars I have driven. Never leaked a drop of oil, never failed to start or even started slow on a cold morning.. fires right up! It sounds and feels like a new car still.. idles at about 700 rpm or so, and sometimes the idle is so quiet and smooth I seriously have to look at the tach to make sure the car's still running. I figure it will easily make it to 100,000, and who knows how long after that. When/if it finally dies, I want to get a new V-6 from a 1999-2004 put in because it has 40 more horsepower. Most reliable engine I have EVER had by far, and I owned an Accord once! Ford has had a lot of experience with these engines in the Taurus and older T-Bird before the 3.8 went into the Mustang, so they know how to make them right. At least, they did with mine!