I go along with the prev posts about this book.
Looking at this book, it appeared to be written by an amsoil rep.(sorry, not trying to slam amsoil). The indication was that synth's are the only oil to use and dino was a bad oil to use. There is some good info that can be found in this book but even a stopped clock gonna be right 2 times a day so does that tell the time?
Amazingly there is many personal opinions about oil which is so much like politics and depending on your position it can be slightly slanted towards your side of the fence. This is why it is a good idea to get a broad spectrum of opinions from various resources so to see a more realistic picture because as you may very well know, there is a lot of "sales propaganda" shoveled everyday. This was why I setup this board so that everyone could discuss this issue in a personal,factual way without drag'n in any sales sheets, but use technical data to help support opinions.
Unfortunatly even the tech data sheets can be mis leading in many examples as the #'s are showing specific tests that don't show the over all action/reaction of the oil when put into actual use. Case in point...
moly will not show up in any of the testing #'s on a tech data sheet. So, when tech data shows up with an 8tbn on a oil with moly, and another oil shows a 12tbn without moly, it appears that the 12 would do better and last longer but in reality, it has shown that the moly provides some antioxidant properties that actually reduce the drain on the oils tbn so if both oils are used for the same time period, the 12tbn will drop say to a 8 but the other one only dropped to a 6.8 or 6.9tbn.
This is one reason I like the oil analysis section as it does show a more broader spectrum of over all use in the oils ability to hold up. Now even that information has to be looked at very closely because like everything else there is differences in a lot o variables which must be taken into consideration.
Conclusion:, as stated by Pablo, look at the whole picture, not just one.