Nice work. I worked within the Caterpillar system for a long time in product support. I've watched about 6 of your videos and fully agree with your diagnostics. Heavy duty on road and mining truck engines have the same issues for the same reasons. A lot of it is not brand specific, just the laws of physics and what's been learned over the past century. Keep up the good work.
Awesom videos mate, would love to hear your opinion on oil fumes catch cans. I run one at the moment but I have heard a few opposing opinions that when fitted, the dryer soot particles might do some damage to the intake and you’d be better off having that little bit of oil with it?