What's your Wh/mi and how do you do it? Any tips?

[gad1976]

Just curious, what's your Wh/mi and how do you drive to achieve it?

Mine, after 7,000 miles is 265 Wh/mi. I thought I was doing pretty good, but I see some drivers in the 230's or even lower. What kind of driving do you do and how do you achieve it?

I drive mostly highway driving. 5 minutes of small town streets, 2 hours of freeway, 5 minutes of small town streets. Then I do it again in reverse. Very little stopping and starting. I use Enhanced Auto Pilot and like it most of the time. I typically drive 4 miles over the speed limit with the bulk of my driving being at 74 mph. I have chill mode turned off. I run A/C when I want and how I want, usually at 69-70 degrees. I don't typically accelerate aggressively. I think I usually drive like a grandma (sorry grandma's).

Is it as simple as driving slower? It doesn't really bother me that I'm at 265 wh/mi but I am curious if there are a few tweaks I could make to do a little better. Or if freeway driving means I will just have higher Wh/mi than city drivers. If it's just slowing down... I'm not sure if I have the patience to do that. it's hard driving at 70 and having everyone pass me going 75 or 80.

Any tips and what's your Wh/mi?

Thanks.

 

[boulder.dude]

Break in your tires, new tires are a 10%-20% efficiency penalty.

 

[dafish]

265 is exactly what I plan on for no/lo wind moderate temp days @73mph

i see around 330 at 78.

your tires, as I understand it, don’t break in. however, tread depth (wear) does affect thing up to generally a max of 10%.

230? Maybe highways, or perhaps model 3’s?

slowing down has a diminishing return. Or perhaps speeding up has an exponential penalty. Anyway, sure slower helps, but each step less and less as you slow. For me 73-74 is a solid compromise

 

[acatwith12]

Y LY -- 298Wh/mi on OEM tires (20k miles), ~315 Wh/mi on Michelin PS AS4 ~6K miles so far

 

[ZenRockGarden]

Highway speed, ambient temperature, tire size and inflation, one pedal driving... in roughly that order

 

[SJordan]

MYP- I don't worry about it too much daily as it is too fun to drive it like a race car. On long highway stretches I get about 270-280 at 75ish getting closer to 80 pushes be closer to 295.

 

[Jyz002]

I have lifetime of 228 on MY, mostly local, mild weather in CA, hurt about 5% from living on a hill (down hill then up loses set amount of energy from imperfect regen)

 

[LoudMusic]

Last I looked it was 294wh/m. The first 30k+ miles were almost entirely interstate at 70+mph. The more recent 45k have mostly been commuting/local driving between 30 and 60 mph.

I only drive efficiently when going between distant Supercharger stops. Otherwise, I drive fast and charge longer. Charging time at home is irrelevant because it's parked in the garage and I'm not paying attention.

 

[jcanoe]

265 Wh/mi after 15k (mostly local driving) miles; it is what it is. The only way to make a lasting impact on improving the driving efficiency of the Tesla Model Y would be to always drive at the speed limit, especially on the highway. 5 MPH lower on the highway will result in ~9% improved efficiency (lower Wh/mile). The Tesla Model 3 is more efficient than the Tesla Model Y due to improved aerodynamics and lower weight (weight does not have a big impact on driving efficiency unless there are significant elevation changes while driving.)

 

[Kupe]

Averaging 245 Wh/mi since purchased 2000+ miles ago. The number continually goes down. My mileage is 65/35 hwy/cty. I seldom accelerate hard, but I typically travel 10 mph over the speed limit (but always below 80).

 

[ajstan]

In my first year in Northern Ohio, my overall average for 12,900 miles was 275 Wh/mi, averaging around 255-260 Wh/mi in the warmer months and 290-295 Wh/mi in the colder months. Similar mix of local, urban highway (60-70MPH), and open highway (70-80MPH) driving throughout the year. 42psi tire pressure and I keep the Gemini wheel covers on. Current status is 18,000 miles at 270 Wh/mi.

When I first got the MY, monitoring and maximizing Wh/mi was a bit of a game for me, although I never went below any speed limits to achieve better efficiency, but usually stayed within 2-3 mph of the posted limit on highways. Now, my default is speed limit +5 on the highways but I will increase to keep up with traffic. I used to use AP 90% of the time but am turning it off more to enjoy driving myself. I've never sacrificed comfort when using the climate controls. None of this has a material impact on my typical range requirements or charging stops on trips.

Regardless, driving the MY has eliminated my fixation on getting from point A to point B as quickly as possible that I had with previous cars. On highways, I used to find a "rabbit" car to follow and monitor Waze for troopers so I could go as fast as possible. Now, I keep the car in Chill Mode (but occasionally switch it to Standard Mode for some fun with on-ramps) and enjoy the ride and the sound system, although I still swipe the cards at the bottom of the screen to see how I'm doing on the current drive along with the tire pressure.

 

[acatwith12]

Averaging 245 Wh/mi since purchased 2000+ miles ago. The number continually goes down. My mileage is 65/35 hwy/cty. I seldom accelerate hard, but I typically travel 10 mph over the speed limit (but always below 80).

View attachment 961402

omg how! That's super impressive, even on autopilot for most driving +10 above hwy I can only get like 288 Wh/mi at best.. no idea how you all getting such great efficiency

 

[Kupe]

omg how! That's super impressive, even on autopilot for most driving +10 above hwy I can only get like 288 Wh/mi at best.. no idea how you all getting such great efficiency

I find I get better Wh/mi when manually driving than I do on autopilot. I suspect the Tesla's auto pilot performance is sloppy (e.g. less efficient) on acceleration and deceleration compared with my own.

 

[gtae07]

Lifetime so far (3k mi) is about 298. At least 50% of that is interstate. But it's summer down here and that means heat and humidity; the AC runs hard most of the time except for early mornings and eats a lot of juice, especially on shorter trips where the initial cooldown makes up a large portion of the trip. I try to limit hard acceleration to save tire life but it's just too fun and it gets away from me sometimes.

 

[UncleCreepy]

241 Wh/mile lifetime average. I mostly drive on county roads and usually don't go more than 5 mph above the speed limit.

 

[Darmie]

That's not bad at all. I've posted may times on here that my lifetime was well above 300. I think the 20in rims contributed to this along with many highway miles.

 

[whisperingshad]

55k over 300

 

[SkyDog]

Lifetime average is 219. Original tires with almost 16,000 miles on them.
Much of my driving is on 45-55 mph country roads, but some interstate highway driving at 65-75 mph
I had the car in standard mode until maybe 2000 miles ago when I finally tried chill and I kind of like that better so it's been in chill mode since.
I use autopilot a lot.

Here's a recent drive, and I took this photo to show that I often get pretty close to the advertised range of 330 miles.
This was a round trip of 120 miles, using 33.4% of the battery. If I do the math correctly, that would be nearly 360 miles on a full charge.
About 80 miles of the 120 miles was on an interstate going 70-75 mph, I was using AC the entire time.

 

[UncleCreepy]

241 Wh/mile lifetime average. I mostly drive on county roads and usually don't go more than 5 mph above the speed limit.

And I just now realized that this is the Model Y forum whereas I have a Model 3, so disregard that number. It would probably be a bit higher in a Model Y.
@SkyDog : 219 Wh/mile is exceptionally low. Unless you tailgate to reduce your drag, it's pretty impressive.

 

[SkyDog]

And I just now realized that this is the Model Y forum whereas I have a Model 3, so disregard that number. It would probably be a bit higher in a Model Y.
@SkyDog : 219 Wh/mile is exceptionally low. Unless you tailgate to reduce your drag, it's pretty impressive.

I never tailgate, I keep a safe following distance.