I found an article by Tom Murphy of his series "Do the Math" entitled "100 MPG on Gasoline; Could We Really?"
http://physics.ucsd.edu/do-the-math/...g-on-gasoline/
I know that when a number of engineers come together there are generally a number of opinions.
Personally I enjoy the posts by stevehull. I think he presents information from a different perspective and is a valuable asset to Ecorenovator, as are many other contributors.
I hope we can agree to disagree on some points and not take it personally.
Sincerely, charlesfl