I thought of all the issues with the speedo and odo. When I figured mileage on the BRP, I used the official length of the Parkway divided by fuel purchased. I filled up right before getting on the Skyline Drive and filled up right after getting off in NC. I only purchased gas on or next to the Parkway.
You folks who are trying your best to badmouth the folks and/or the practices of those who get higher mileage, what's your beef?

A more common method is to use the odometer, showing miles ridden, then divide by the amount of gas. That usually gets you the mpg for that tank.
I don't think there is a particular "beef", just a desire for real world calculating, resulting in real world numbers.
Dave
I almost always use your stated method, I just checked it (since it was so high) so I double checked it with officially stated miles. Sorry I wasn't clear in using that for a double check. Whenever I've checked my speedo with the GPS, it reads high (almost exactly 6% fast) but the odometer is less than 1% off. An indicated 100 miles is actually 99.3 according to my GPS. I think most folks understand the long division process for this also.
As far as no one having a 'beef' with this, some of those stating their mileage have been called "liar" in this thread. I think that is very serious in any situation.
