Some specs of comparing engine life with "apples to apples." That is comparing engines in the same duty class. B10 engine-life rating means 10% fail and 90% do fine. B50 means 50% fail before the first rebuild under heavy use.
The 5.9 Cummins "straight-six" diesel has a B10 rating of 210-250,000 miles and a B50 of 350,000 miles.
The Ford and IH diesel 7.3 (or T444E) V8. B10 rating of 210-250,000 miles and a B50 of 350,000 miles.
Chevy Duramax V8. Has B10 of 220,000 miles
I.e., they all have the same projected engine life.
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Today's Featured Article - Talk of the Town: The Saga of Grandpa's Tractor - by The following saga is from the Tractor Talk Discussion Forum. Someone. The saga starts with the following message: Hey guys I have a decision to make. I know what you all will probably suggest and it will probably agree with me way down inside, but here it is. I have a picture blown up and framed in my "tractor room" of a Farmall M. It was my Grandpa's tractor, of which whom I never got to meet. He froze to death getting this tractor out of the barn to pull a truck out of the ditch before I was born. Anyway my dad and aunt had to sell it at the auction,
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