<strong>Yahoo Message Number: 12555</strong>Was talking to a Cummins Service Rep. today. He suggested a valve adjustment after 20,000 to 30,000 miles. I thought I read in the Cummins literature that it was much longer than that?? Is this the case or was he just trying to sell me a unnecesary service?? Thanks<br/><br/>Lee in Portland with '01 Intrigue with ISC Cummins 350 HP with exactly 30K...