I bought a new 2255 with the 3150 engine, used it for 21 years, it still had the original rings when I retired and sold it, I did put the bearing kit in as that was a recall.  The tractor did not Know when to quit, pulled a 6-16 bottum plow with no problem. Blowed one head gasget put in some rebuilt injector nozzles and an intake manifold with a stress crack. It had excellent fuel      economy.  The tractor had some oil leaks,not the engine,  &amp;quot;Great Tractor&amp;quot; My opionion. Delbert