My best efficient yet! (94% EPA AGT21”)

[Tesla2.0]

I have always been 2.5 ~ 3.2 mi/kWh range 99% of time, so how did I achieve it this time???

My parameters (vs. normal parameters)
Trim: Air Grand Touring
Tires: 21” summer Pirelli
Odometer: 2120 miles
Software Version: 1.2.9
Starting SOC: 99% or 457 miles
Time: 10pm (normally driving time 9am ~ 6pm)
driver + 2 passengers (normally just myself)
86F exterior (normally 88F~115F)
Cabin-72F FanSpeed-3 (normally Cabin68F FS8)
Tidal volume: 35% (normally 70% by myself)
Navigation: On (normally off I don’t use much)
Speed: 40~65mph 90% of time (normally I drive 35~90mph)
Drivetrain mode: Smooth (35/65 Smooth/Swift historically)

I was in Driving Miss Daisy style with all due respect didn’t want my elder 80+ years old passengers to puke. So I somehow hit the sweet spot to achieve 94% EPA, and I’m sure if had I drove this style longer, I would no doubt achieve to bring that to 3.9 or even 4.0 mi/kWh.

3.8mi/kWh * 112kWh battery = 425.6 mi
425.6mi / 460mi = 92.5% EPA
43.9 / 10% = 439 mi
439mi / 460mi = 95.4% EPA
(92.5%+95.4%) / 2 ~= 94%

I had long doubt these EPA are merely fairy tales, tonight riding with wiser beings that I finally saw the light.

 

[Bunnylebowski]

I have always been 2.5 ~ 3.2 mi/kWh range 99% of time, so how did I achieve it this time???

My parameters (vs. normal parameters)
Trim: Air Grand Touring
Tires: 21” summer Pirelli
Odometer: 2120 miles
Software Version: 1.2.9
Starting SOC: 99% or 457 miles
Time: 10pm (normally driving time 9am ~ 6pm)
driver + 2 passengers (normally just myself)
86F exterior (normally 88F~115F)
Cabin-72F FanSpeed-3 (normally Cabin68F FS8)
Tidal volume: 35% (normally 70% by myself)
Navigation: On (normally off I don’t use much)
Speed: 40~65mph 90% of time (normally I drive 35~90mph)
Drivetrain mode: Smooth (35/65 Smooth/Swift historically)

I was in Driving Miss Daisy style with all due respect didn’t want my elder 80+ years old passengers to puke. So I somehow hit the sweet spot to achieve 94% EPA, and I’m sure if had I drove this style longer, I would no doubt achieve to bring that to 3.9 or even 4.0 mi/kWh.
View attachment 4038View attachment 4039View attachment 4040View attachment 4041View attachment 4042

3.8mi/kWh * 112kWh battery = 425.6 mi
425.6mi / 460mi = 92.5% EPA
43.9 / 10% = 439 mi
439mi / 460mi = 95.4% EPA
(92.5%+95.4%) / 2 ~= 94%

I had long doubt these EPA are merely fairy tales, tonight riding with wiser beings that I finally saw the light.

Yeah the best I’ve hit was 4.4 mi/kWh on 19” wheels going 5 mph over whatever the posted speed limit was, but that was with elevation changes and normal AC settings so I’m confident it’s totally possible to hit EPA without weird hypermiling, just don’t like driving that slow, it just feels wrong in this car.

 

[Tesla2.0]

I also think the car is like wine, gets slightly better EPA as it ages odometer. And there also may possibly be some optimization when car is charged to 100% for long distance drive than 80% daily use. (Less BMS care, etc)

 

[Tesla2.0]

So, the saga continues….

Before…

After…

3.9mi/kWh * 112kWh / 469mi (newly adjusted)
= 93.1% EPA

This time outside temperature is 79F as oppose of 86F previous drive. No passenger this time, driving on freeway 90% of time, and on freeway 55~65 mph 95% of time. There was 5% of time when I got Model-X and Model-Y approachedto ahead of me on my left and right. They both roll down their windows and gave me a thumb up. One of them took video of my Air then pulled away. I then muscle away to 85 mph instantly followed those Teslas, but after couple minutes, I slowed down and told myself, I have a scientific experiment to continue. HVAC set same parameter, 72F, fan-speed 2 with recycle air. Not using Tidal nor Navigation this time.

Conclusion, the biggest efficiency drag is probably beyond 80mph driving and definitely the environment temperature acclimation. Summer daytime is just poor for efficiency.

 

[Snafu]

Local driving a couple days ago....not too shabby.

 

[HC_79]

Local driving a couple days ago....not too shabby.

View attachment 4832

The speed limit is 30mph not 45!!!

 

[borski]

The speed limit is 30mph not 45!!!

Lucky for him he was going 0.

 

[thecodingart]

Local driving a couple days ago....not too shabby.

View attachment 4832

This is why I’m not fond of people using the range estimator view (it’s inaccurate). Looking at your picture, you probably used up 30% or so of your battery making this a pretty inaccurate range estimate and your total mileage much closer to the low 300s. This tracks with my experience thus far. (Not sure if this trip is from 100% or something else of course).

 

[thecodingart]

So, the saga continues….

Before…
View attachment 4146

After…
View attachment 4148

3.9mi/kWh * 112kWh / 469mi (newly adjusted)
= 93.1% EPA

This time outside temperature is 79F as oppose of 86F previous drive. No passenger this time, driving on freeway 90% of time, and on freeway 55~65 mph 95% of time. There was 5% of time when I got Model-X and Model-Y approachedto ahead of me on my left and right. They both roll down their windows and gave me a thumb up. One of them took video of my Air then pulled away. I then muscle away to 85 mph instantly followed those Teslas, but after couple minutes, I slowed down and told myself, I have a scientific experiment to continue. HVAC set same parameter, 72F, fan-speed 2 with recycle air. Not using Tidal nor Navigation this time.

Conclusion, the biggest efficiency drag is probably beyond 80mph driving and definitely the environment temperature acclimation. Summer daytime is just poor for efficiency.

I’d much more prefer to see the mileage based on the battery percentage used from a last charge.

 

[Snafu]

The speed limit is 30mph not 45!!!

Ah, grasshopper... not necessarily... I was on a 2-lane road a few days ago where the car said it was 75 mph, but I know it is actually 50. Sometimes the speed limit signs can be just suggestions.

 

[Snafu]

This is why I’m not fond of people using the range estimator view (it’s inaccurate). Looking at your picture, you probably used up 30% or so of your battery making this a pretty inaccurate range estimate and your total mileage much closer to the low 300s. This tracks with my experience thus far. (Not sure if this trip is from 100% or something else of course).

I typically charge to 80% - no long trips as yet. The one time I tried to extrapolate out from the amount of miles driven plus the "remainder" left on the range and the percentage of battery to a 100% battery, it showed 521 miles... but again, that was me driving in "Miss Daisy" mode. I know better than to expect perfect results. If I can manage 480 or so, that suits me fine.

 

[Bunnylebowski]

I decided to do a different type of range test, charge to 100% and drive close to zero but do it over many days. The point is that while we all love our road trips, I think it’s most useful to know efficiency for commuting/errands/day trips, which is basically 90% of how the car is actually driven. I’m going 5mph over whatever is the posted speed limit. Unfortunately I have a short commute so this test is gonna take forever. Range tests always are driven continuously, which kind of is rigged in favor of maximum range since there’s very little acceleration involved once you get up to speed, whereas with what I’m doing it’s very frequent acceleration and deceleration due to lights, stop signs, traffic, elevation changes, with a mix of highway and suburban road speeds, etc. I’ll report back when I’m done, could take a couple weeks!

 

[Tesla2.0]

I’d much more prefer to see the mileage based on the battery percentage used from a last charge.

That is usually low bc energy consumption for fan cooling can be tremendous when parked in a hot place.

 

[pam4_AGT]

Beat this:

 

[Bunnylebowski]

Beat this:

View attachment 4866

I’m guessing a lot of downhill driving was involved? But for that many miles that’s still a crazy number. Trip B is more realistic. But I’d save Trip A as a trophy like you did haha.

 

[borski]

I’m guessing a lot of downhill driving was involved? But for that many miles that’s still a crazy number. Trip B is more realistic. But I’d save Trip A as a trophy like you did haha.

That’s bananas. Driving at 50 the whole time with no A/C? Haha

 

[Tesla2.0]

Beat this:

View attachment 4866

Glitch, I had same glitch before. 6.4 was maximum displayable number. You actually have 7.3 mi/kWh. Regardless, his 3.5 mi/kWh is respectable efficiency.

 

[pam4_AGT]

I’m guessing a lot of downhill driving was involved? But for that many miles that’s still a crazy number. Trip B is more realistic. But I’d save Trip A as a trophy like you did haha.

Yeah, I just drove down one hell of a mountain!

 

[Sandvinsd]

Beat this:

View attachment 4866

Something is wrong with your car computer. 1992.3 miles / 272 kW = 7.3 and not 6.4

 

[maractwin]

Something is wrong with your car computer. 1992.3 miles / 272 kW = 7.3 and not 6.4

The problem is that 6.4 is the highest value it can display there. I haven't seen anyone legitimately with that high a number, but whenever someone hits a weird case that produces a nonsensical number (i.e. immediately after charging, display the stats since last charge, and then roll downhill), it appears as 6.4. It would be better if Lucid either displayed "0" or just a dash when this happens.