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Range data from removing Aero Wheel Covers

TL DR; 16.7% increase in Wh/mile with aero wheel covers off.

ML ND; 54 mile drive: 4 miles of surface streets, 50 miles freeway. Freeway speed was between 75 and 85. Similar driving style.


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Active Member
Nov 25, 2017
Something is not right here. We had someone do the comparison before and it was around 5% difference on 18 inch rims if covers were off.
If you go from 18 inch to 19 inch, that's another 5% (worse for 19)

It could be right. 75-85mph is quite fast. aero drag goes up exponentially with speed.
Seems way too high to me. More details are in order.

Highway speeds were 75-85 mph? What does that mean exactly? Were the speeds identical on both runs out not?

Were the two runs done right after each other to ensure similar temps and winds?

Did each run stop/start at the same location to minimize effects from changes in elevation and wind direction?

Was climate control turned off?

Etc. Etc. Etc.

(Also, what is ML ND?)
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Reactions: David99 and DR61
My experience is my experience, obviously. Your mileage may vary.

That being said, I have driven the same route to work for 16 days. Each time was a consistent 240 ish Wh/m. Again, it’s not scientific, but I feel it’s a consistent data point.

I’ve only driven once without the covers, but that is a significant change. Also, I did not hoondog it and Otto was my pilot.
What we need to do is have two Model 3 owners get together and do this test at the same time. Drive the exact same route at the same time at the same speeds, one with Aeros on and one with them off.

Both using autopilot, then switching who leads and coming back the other direction. Repeat 5-7 times.

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