I just received an Automatic Pro, and question how it is calculating average MPG. For example, see the following 2 trips it tracked:

Trip 1

Duration: 0.0:16.0

Average MPG: 16.93

Fuel Volume: 0.45 gal

Distance: 7.5 miles

Trip 2

Duration: 0.0:23.0

Average MPG: 16.93

Fuel Volume: 0.42 gal

Distance: 6.98 miles

For the first trip, I would presume my MPG should be 7.5 miles/0.45 gal = 16.67mpg. However, the reported MPG is 16.93.

For the second trip, Automatic again reports a MPG of 16.93 mpg. However, I am presuming the correct MPG is 6.98 miles/0.42 gal = 16.62 mpg.

Am I missing something here, or are the calculations just incorrect?

Thanks,

Steven Thiel

Trip 1

Duration: 0.0:16.0

Average MPG: 16.93

Fuel Volume: 0.45 gal

Distance: 7.5 miles

Trip 2

Duration: 0.0:23.0

Average MPG: 16.93

Fuel Volume: 0.42 gal

Distance: 6.98 miles

For the first trip, I would presume my MPG should be 7.5 miles/0.45 gal = 16.67mpg. However, the reported MPG is 16.93.

For the second trip, Automatic again reports a MPG of 16.93 mpg. However, I am presuming the correct MPG is 6.98 miles/0.42 gal = 16.62 mpg.

Am I missing something here, or are the calculations just incorrect?

Thanks,

Steven Thiel