Contradictory numbers in Energy Content table 

This isn't my field of expertise, but I noticed what seem to be some contradictory numbers or bad conversions in the Energy Content table. For example, Aviation Gasoline is shown as having a lower number of MJ/liter and BTU/gallon than Regular Gasoline, which doesn't sound right. But when converted to MJ/kg, the number is higher than gasoline.

I have another remark regarding the Energy content section. Is the displayed energy content the true energy content or the energy content when used in a conventional internal combustion engine (this would change the figurs greatly as eg gasoline is burnt here with 20% efficiency; while hydrogen is burnt with 40-60% efficiency)