Do I really need to fill with expensive Honda specified 0w20 motor oil?

I came across a comment on a forum complaining that: “Now, with no engine changes that we know of, Honda specified 0w20 motor oil in the 2011s? CRAZY!” I imagine this is a pretty common reaction – especially when the lower viscosity lubricant costs considerably more!

The underlying reason for the change is the ever tightening emissions regulations, which are directly influenced by the fuel consumption,