My V6 2.7 4W SF averages to 19,19 miles/gallon after 1200 miles.

The mileage was ways better on the first 600 miles, when I drove the SF gently and not faster than 87 mph.

There seems to be the magic barrier behind 90 mph, when she starts to become REALLY thursty. I took her on the highway for one load of fuel at full speed of 124 mph (regarding the speedometer, the GPS registered 118 mph) and this one trip ruined the entire 1200-miles-statistics.

For efficiency reasons I will reduce throttle to not more than 90 mph in the future, but speeds of 120 mph are absolutely common here in Germany, so she is "putting me on the right lane". More time to enjoy the driving on the other hand...

Andreas