Brent,
I recall being able to get 16 gallons of fuel into my Syncro with a lot of
nursing
right to the very brim.  Now do I hear 16.5?  You have piqued my curiosity
and as much as I hate carry a can of gas in the van, I am going for it too.

I wonder if the reserve means it is the amount held in reserve to be used
after a prudent person would have already stopped to refill or, it is the
amount reserved because it cannot be drawn out of the tank?  You must have
heard how that last bit of gas is full of all sorts of unnatural stuff which
can do evil things to an FI systems.
Rich