2.7 engine

I always hear the bad things about the 2.7 and the sludge problem. (After I bought one).

Even read stories about those who changed the oil with synthetic every 3,000 miles and they still had a ruined engine anywhere from 50,000 to 65,000 miles.

Does anyone know of a 2.7 engine that lasted 100,000 + miles without it shucking out?

If so, what was their oil changing routine.

I have read that Chrysler corrected the sludge problem with the 2003 and newer engines. However, there are websites that say the problem still exists. Mine is a 2004.

Any info. Would be appreciated.