OK got my seond fillup today after 4 weeks.

635 miles for 16.9 gallons or 37.5 mpg. Mpg meter said 39.7
so quite a difference.

For this I used the exact same pump at the exact same gas
station with auto shutoff during both fillups. So the number
should be quite accurate.

This is 80% city driving and 20% highway.

I tried quite hard to maximize mpg but am not staisfied yet.

My goal is to cross 40 mpg. Will try some more this time and
hope the engine break in is true.

In the freeway while crusing at 65 miles per hour which is the limit
here in the Bay area, I could never get above 36 mpg (this
information I got from the fuel consumption history in the navi)

So looks like the only way to hit 40 mpg is to do a lot of city
driving. In the city streets I can get 60 mpg stretches with pulse
and glide.

Tire pressure is set to 38 psi. 35 is recommended max is 44.

Maybe will try 40 psi this time.

Also draining the battery before parking at home each night by
gliding through the last miles on EV mode is a good idea. In the
morning the gas engine has to fire up to warm the catalytic
converter. It can as well charge the battery then. If battery is
already charged from last night, the excess energy at that time
is just wasted.