Raw data:
Code:
West East Avg.
A 49.1 49.3 49.2
A 49 48.4 48.7
A 48.2 48.8 48.5
A 49.1 49 49.05
B 48.2 48.9 48.55
B 47.8 48.8 48.3
B 48.3 49.1 48.7
B 48.5 49 48.75
A 48.5 48.5 48.5
A 47.8 49 48.4
A 48 49 48.5
Avg. of all A runs (7): 48.69 mpg (US)
Standard deviation of avg. of all A runs: 0.31 mpg (US)
Avg. of all B runs (4): 48.58 mpg (US)
Standard deviation of avg. of all B runs: 0.20 mpg (US)
The distribution of the data seems pretty tight. I have a good test route (next to no traffic) & had nearly ideal weather (next to no breeze).
I'm waiting (weather) for the opportunity to also tuft test the back window/trunk of this car with & without the VG's. Hopefully this weekend.