Hello, I am new diesel owner and after just one month and 1000 miles I will never go back to a gasser again. I have a quick question though, Is it normal to hear more engine (rattle) not sure what else to call it) in the upper RPM's? Such as in a downshift to pass. IT seems when dropping a gear at about 2500 rpms the engine rattles more till it up shifts then quiets down again. Any insight would be great. Thanks and I love this site:D
Rick

At 2500 RPM the Pilot injection shuts off because it can no longer keep up. This is why you hear more clatter and it is completely normal.

Thanks Max, Now that I know what it is called I found lotsa information using the search. I just didnt know what to call it.
Thanks again,
Rick.