On 9/10/2015 7:51 PM, Stan Shapiro wrote:
> What highway speed / RPM  do most of you drive at?   What is your MPG?

Here's more fuel consumption data than you asked for about my '84 Westy
with a 2.3L GoWesty engine, installed in 2009, about 62K miles ago:

http://www.fuelly.com/car/volkswagen/vanagon/1984/sbw/16898

In the past week or so, I've driven over the Santa Cruz Mountains on
CA17 a bunch of times at the speed limit, 50 mph.  And up and down the
peninsula on the freeways at 65 mph.

I was very pleased to turn in 20.1 mpg.  Generally, I get 18-19 mpg with
that kind of driving.

Any significant driving on surface streets can quickly pull the mileage
down under 18 mpg.

Also, wind.  Driving long distances with a strong headwind or crosswind
can dramatically reduce the MPG.