Cab insulation
Can the drivers and passengers hear the clatter of engine noise while driving down the highway? I am talking about the older diesels, the ones that sound like a Briggs & Stratton engine with the muff...
Forum Discussion
My 2005 Powerstroke came with extra insulation. I barely hear the engine. (I barely hear anything anymore.) I could carry on a conversation with the passenger while towing up a mountain. Much better than the older trucks. I drove a semi back in the 70's and you couldn't hear the passenger unless they yelled. Probably why I can't hear today.
