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3.08 mi/kwh over 254 miles @ 58 mph

mikehmb

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… of course there’s a catch.

Just got back from Tahoe (Incline Village). Route was up to Truckee, down 80, cut across (via REI near downtown to grab some electrons for free) to I-5 and over 580/205 back to 92 to Half Moon Bay.

A big chunk of that is obviously downhill, but at 75+ the entire way in All-Purpose mode, managed 3.08 mi/kwh (with a couple of major slowdowns in the bay area). Easily can get from Tahoe back to the coast from 85% with a comfortable buffer, esp if I tone it down on the speed. Pretty sure I can get up there without any issues from 100%, but I’ll probably take it easy and grab some charge in Sac anyway since it’s free and pretty much on the way.

My Tundra, even with the benefit of the downhill, would still best-case hit 19 mpg over the same drive.

9A1A6F4C-805B-457F-9D73-582FC1D4E934.jpeg
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Lysdexic

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Love the starry sky in your graphic

21” wheels I assume?
 

Redmond Chad

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Thanks for the numbers. Fuzzing them up with some rough figures:

That's about 6275' of elevation loss. With the Model S, I used to figure about 10 miles of range lost per every 1000' of elevation gain, and 2/3 of that regained on downhills. The R1T is about 50% heavier, so let's say 15 miles lost going up, and 10 miles gained coming down.

So I'd expect you to have "gained" about 63 miles of range coming down that far (ignoring intervening hills...and of course other factors like wind, temperature, HVAC, water on road, etc). If we subtract those 63 "free" miles from the 255 miles you drove, that's 191 miles you effectively traveled - or 2.32mi/kWh as an expected efficiency if the route had been flat.

I'm afraid I haven't paid much attention to efficiency numbers that users have posted - well, except for towing numbers, but that's not much use here. For comparison, Edmunds got 2.08 in their highway test. Out of Spec Reviews got 2.15. So it sounds like you were doing pretty well even ignoring the downhill contribution!
 
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crashmtb

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Not sure how you might “tone it down on speed”, the last time I drove that chunk of 80, I was getting passed doing 90mph downhill barely keeping up with most of the traffic 😳
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