Quote: I have 486225 miles on my '06 CTD Dually. Never had the valve cover off. I fuel up at the end of a run which is daily. I buy fuel at my Speedway station and change the fuel filter every 20,000 miles. Maybe I better knock on wood.
You are way over due for a valve adjustment check.... You may not need any adjustments but a overhead check is a real good idea....
"Fat drunk and stupid is no way to go through life son......"
