Yesterday, I drove into Dallas by a round about route. The drive was 40 miles each way. My speed for a few minutes was 40-55. The rest of the time I was driving around 75 with some short bursts to 80-85. Some of the same observations--It takes less gas pedal to run a specific speed. It is very noticeable at speeds 70 or more. Initial pedal response is better at all speeds.

On the way back I ran into a traffic jam. It was stop and go for 5 miles. I had the transmission in manual and only shifted into second a few times.

Temperature stayed normal throughout the drive.

The amount of time the fan runs when the engine is off is not a factor. There is no need to change how the fan is wired. I have not had to change the thermostat control dial.

I think the fan is doing everything I hoped it would do. I am very pleased with the results and would certainly do it again. As to the question is it faster? While I don't have any verification, I believe it is. It is harder to tell at lower speeds because acceleration is rapid either way but going from 70 to 80-85 seems faster.

Improved mileage was not a goal but next time I am out I will check mileage and post the results.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas