Originally Posted by Stainless
They do that when its built as a marker for the final inspector to see that it was all tightened and properly assembled, I doubt your dealer did this.
Yeah you are totally correct! Wow......so I have an update. I am a moron! I just reviewed a video I have of my truck when it was brand new and you can see the engine. Guess what????? The marks were all there from the factory! So I guess when I cleaned it last week I just didn't notice them-man I would have lost that bet for sure. I'll go hide under a rock now.