11% may be a bit high and it certainly is not universal. Different trucks have different shapes and the results of this or that on mileage will vary greatly.
Run 10 test with different trucks and speeds and you will get 10 very different answers.
11% may be a bit high and it certainly is not universal. Different trucks have different shapes and the results of this or that on mileage will vary greatly.
Run 10 test with different trucks and speeds and you will get 10 very different answers.