Inline-sixes tend to have problems tied to their size and length, higher camshaft flex and torsion, uneven air/fuel ...
Sometimes theory is neat, but sometimes it fails to describe what actually takes place. The theory of internal combustion engines falls into this category, especially with respect to the function of ...
No idea. It's the intake manifold gasket that's the most common gasket failure on that engine, if memory serves. If you're not actually leaking I wouldn't worry about it. I thought it was the 3100 and ...