CDR valve question
Postmaster
Joined: Apr 2008
Posts: 4,802
Likes: 1
Nope, I don't think so - the CDR is just a vent for the crankcase oil vapors that closes at WOT, it provides no additional air or fuel to the engine. Besides, with these trucks fuel is usually not an issue, mine for instance can black out a 2-lane road no problem if I wanted it, it's the air we're lacking to make power.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Since the CDR function is to keep the engine oil in the engine instead of in the cylinders burning as fuel, cleaning the CDR may actually mean less power.
Motor oil has a higher BTU content than diesel does.
But the lower BTU content also means you will be less likely to stretch head bolts on the 6.9.
Motor oil has a higher BTU content than diesel does.
But the lower BTU content also means you will be less likely to stretch head bolts on the 6.9.
