Inliners International Forums General Discussion Engines million mile six

Are there any super high mileage engines that people know of? What do people consider "high" miles on a well taken care of 6 like a 250?


Dan

I've seen several examples of engines with over a half-million miles - both sixes and v8s. A long service life depends on following manufacturers recommendations for service intervals - and a lot of luck.

Our daughter's 97 4.0 Cherokee shows 360,000 miles. She bought it with about 280,000 about 4 years ago. It appears to be the original engine ...
She had the oil changed 4 times at most in the last 80,000 miles. The engine is noisy but doesn't smoke and runs smoothly.
In the late 1970's I worked for a few years in a fleet maintenance garage. Highest mileage good running gas engine I saw was 160,000 miles. Fleet service can be tough on engines.

I worked for a taxi company, & it was not unusual to get 1/2 million kilometres out of a Ford 250. At the most a leaking head gasket on the alloy heads needed replacing.
Also the Bedford trucks that run stove bolt engines have a reputation for going forever.
I doubt they would be popular if they could not get 1/2 million k's My own Bedford has a Chev 292cu inch & this is still going after 40years! only problem was a burnt intake valve.