Efficiency boost from 2025.10 update? Anyone else seeing this?

[elektrode]

I feel like the efficiency graph has changed, but my trip meter results still suck. My trip meter says 1.64 over the last 950 miles while my efficiency meter sometimes tells me (after the update) that I’m rocking 2.4-2.8.

Yes, warmer. Yes, the law of averages. The efficiency graph at least has different ballistics now. They changed something on that driver screen graph.

(note, my efficiency sux overall. Maybe the second worse numbers in the forum)

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[2kwik4u]

I feel like the efficiency graph has changed, but my trip meter results still suck. My trip meter says 1.64 over the last 950 miles while my efficiency meter sometimes tells me (after the update) that I’m rocking 2.4-2.8.

Yes, warmer. Yes, the law of averages. The efficiency graph at least has different ballistics now. They changed something on that driver screen graph.

(note, my efficiency sux overall. Maybe the second worse numbers in the forum)

Lot of elevation gain around you? Which part of NC are you in. Would be interesting to see what your daily drive looks like.

I'm only ~150ft difference between the house and the office. Around 700ft asl. I can go less than 30mi east and be over 1,700ft asl. I noticed while travelling out to snowboard this winter that I was getting like 1.1mi/kWh. Worse than towing our boat. Cruise at 75, Driver+ on; what gives? Looked at elevation and prevailing winds and realized I had spent the last 15min climbing exclusively AND driving into a 20+mph headwind.

 

[2kwik4u]

Interesting update.

So, I get the ideation that this was weather-related phenomena, as yesterday was quite comfortable compared to recent history. I've returned with more data.

This morning I still had a 7% improved SoC consumption over my average for this commute. (I used 28% SoC to get to work). That's still (35/28 = 1.25 = 25% improvement). That's still pretty darn significant, in my book.

7%

Today's thermometer says 43F. Heat on, driving into headwinds (weather app says 20 mph, but I don't think they were directly normal to my line of travel, so take that with a small grain of salt. That said, wind load is definitely a killer on this commute--it got me on my way home yesterday).

So, if it is an anomaly, it's still an anomaly!

Which battery do you have? Large (131kWh) pack?

Still an improvement.

Any other recent changes? Alignment? Shift weight in the truck daily (move a toolbox from side to side)? Add/remove a rack? Add/remove panels underneath? Wax it? Rotate Tires?

25% still feels high for a single software change. 43degF had me ay like 1.63mi/kWh. 28% of a large over 72mi would put you at 1.96 mi/kWh, so that would track somewhat, but your previous 35% yields a 1.57mi/kWh which is much closer. I do have a dual compared to your quad. Hrmmmm

What about corroborating evidence on charge added/removed? Have any tracking/logging on the charger? Wonder if they didn't change the efficiency, but changed what constitutes 100% charge. 25% is a lot there too, but just a thought.

 

[R1Thor]

Which battery do you have? Large (131kWh) pack?

Still an improvement.

Any other recent changes? Alignment? Shift weight in the truck daily (move a toolbox from side to side)? Add/remove a rack? Add/remove panels underneath? Wax it? Rotate Tires?

25% still feels high for a single software change. 43degF had me ay like 1.63mi/kWh. 28% of a large over 72mi would put you at 1.96 mi/kWh, so that would track somewhat, but your previous 35% yields a 1.57mi/kWh which is much closer. I do have a dual compared to your quad. Hrmmmm

What about corroborating evidence on charge added/removed? Have any tracking/logging on the charger? Wonder if they didn't change the efficiency, but changed what constitutes 100% charge. 25% is a lot there too, but just a thought.

2023 Adventure, Large Pack, RUS, still rocking my aftermarket nATs.

No recent changes, at all, especially from last week/ prior to the OTA update.

I have the Rivian EVSE. No way to track, as far as I'm aware. My solar is usually my 'go to' to see where and how much energy is being used overall at home, but my Gateway stopped working on March 31st, so I have no recent energy data.

I don't dig any of the trackers that interface with our vehicles. I get they're relatively secure, but I'm on the cusp of paranoia when it comes to personal data, accounts, accessibility, security, etc. I'm definitely not adding one of those as a driver profile or giving it my VIN.
8 years in the military will do that to you, depending on your MOS and assignments

I'll keep checking on things! THAT said, I'm planning to swap back to my 21 OE Pirellis this weekend, as they're my 'summer/non-offroad setup.' So, my apples-to-apples comparisons will come to an end.

If literally no one else is having this experience, I may chalk it up to the ideation that something was 'fixed' in my vehicle that was simply off all along, and I'd simply had less-than-nominal efficiency.

 

[2kwik4u]

2023 Adventure, Large Pack, RUS, still rocking my aftermarket nATs.

No recent changes, at all, especially from last week/ prior to the OTA update.

I have the Rivian EVSE. No way to track, as far as I'm aware. My solar is usually my 'go to' to see where and how much energy is being used overall at home, but my Gateway stopped working on March 31st, so I have no recent energy data.

I don't dig any of the trackers that interface with our vehicles. I get they're relatively secure, but I'm on the cusp of paranoia when it comes to personal data, accounts, accessibility, security, etc. I'm definitely not adding one of those as a driver profile or giving it my VIN.
8 years in the military will do that to you, depending on your MOS and assignments

I'll keep checking on things! THAT said, I'm planning to swap back to my 21 OE Pirellis this weekend, as they're my 'summer/non-offroad setup.' So, my apples-to-apples comparisons will come to an end.

If literally no one else is having this experience, I may chalk it up to the ideation that something was 'fixed' in my vehicle that was simply off all along, and I'd simply had less-than-nominal efficiency.

I suspect something changed, just hard to say what at this point. I don't believe in coincidences, personally, I just think we often don't know the root cause and it's often not worth tracking down at some point.

What are nATs? Nokian All Terrains? Normal Atlas Transfers? I think they're tires, but I'm a little lost here

 

[R1Thor]

I suspect something changed, just hard to say what at this point. I don't believe in coincidences, personally, I just think we often don't know the root cause and it's often not worth tracking down at some point.

What are nATs? Nokian All Terrains? Normal Atlas Transfers? I think they're tires, but I'm a little lost here

Yes, nAT = Nokian Outpost nAT.

 

[zefram47]

Interesting. I don't have software markers in mine.

Try clicking on the text at the bottom for "Software Markers", being greyed out I think they're just off. I was able to toggle it on mine.

 

[Zoidz]

I installed the latest update yesterday. Based on this thread, I was observing efficiency closely when drove to work this morning. Temperatures were COOLER this morning, and yes, it seems the efficiency on my Gen 1 Quad is up a bit. I use Trip B as a long term efficiency indicator, so I reset Trip A to monitor the efficiency since the update. Not scientific, but it may provide some relative indications.

I suspect something changed in the data logging and calculation rather than a true improvement, but it's always possible that there were some software tweaks that affected true efficiency.

 

[2kwik4u]

I suspect something changed in the data logging and calculation rather than a true improvement, but it's always possible that there were some software tweaks that affected true efficiency.

I'm leaning towards this as well.

Maybe they just "tuned the NOS timing" a little

Hilarity aside, I could see where field timing changes on an industrial motor could yield efficiency improvements.....These things are really just giant VFD's after all.

 

[Herb]

I've also observed graph efficiency numbers at new levels, sometimes 3.5 or higher. This is on my daily commute, and I have never seen these numbers even in much warmer weather. I am guessing at least a 10% improvement. Also, SOC seems better, but still anecdotal until I collect some data. I would normally charge mid-week when I get to around 35%. I am still at >40%. I also think this is beyond weather but need more time and data.

 

[Budman]

Did the efficiency increase with the most recent update? Based on my testing I think the answer is clearly no. My most recent trip is denoted with the blue arrow. It's actually a little bit worse but the wind was a bit high. Will continue to monitor but I would be very surprised with it had increased.

 

[HaveBlue]

This feels really weather related. Have a look at this data from yesterdays commute on my truck. 37.8% efficiency increase from my morning drive in to my afternoon drive home. Nearly the same deltaT you had 43degF in the AM, 63degF in the PM. Sure feels like a temperature related change from here.

Here's what my truck shows from data collected on ElectraFi regarding temperature vs efficiency. Right at a 10% swing in measured efficiency difference when comparing the 45deg to the 61deg segments. Not nearly as dramatic as our recent commute data would support.

Any data on your battery temps? Motor Temps? Tire Pressures? Assuming the same route to/from the office as well. Any thoughts on average speed/traffic issues that might have contributed?

I've found efficiency is more closely tied to motor temperature and tire pressure than battery temp. I've seen over 2.0mi/kWh with motor temps over 100degF, and tire pressures over 50psi, while battery temps were still under 50degF. For instance, driving in snow mode for the first 10mi or so will warm both motors, then switching to all purpose on my dual will drop the rear motors and get the highest efficiency. This seems to be much more important than battery temps in my experience.

I've also let the tire pressure drop into the mid 40's, and efficiency drops quick. I try to run around 50psi in mine and that seems to be around where the "sweet spot" is. Any more and the ride is garbage with no real increase, any less and the efficiency drops significantly. Mine will swing 3-4psi in the winter between sitting in the driveway and 20mi of interstate driving. Maybe you're right on the cusp here?!?!

Anecdotally (and I've only had the truck since Sept 30th), I've seen well over 2.0mi/kWh for long durations a number of times. Again, typically on road trips once the motors/bearings/etc are good and warm. Made 3 road trips now, 2 to KY and 1 to PA. I'll go back and consolidate the trips and see if my data backs up what I 'feel' like the truck is doing. My gut is telling me that 2.0mi/kWh isn't absurdly out of line with a warm truck with good pressures. You're 1.5-1.8 numbers "feel" like the cold weather numbers I was seeing in the dead of winter this year.

I would have to go back and dig through a ton of data, but I'm wondering if that 50degF range is the "tipping point" to drop us in to lower efficiency numbers. That is to say the 20deg swing from 40 to 60 is of greater importance than the 20 deg swing from 60 to 80, or from 10-30?!?!

Just a thought on motor temp observation above. I know my dual motor truck has oil bathed motors (not sure about your quad), and that would support the above theory. Viscosity isn't linear with temperature, and it thins much quicker in the "lower temps" than it does at higher temps. Pulled the below chart from Engineering Toolbox that corroborates that thought.

Love this kind of discussion. Thoughts?!?!

Your average speed on the first run was 58mph. 50mph on the second. That will account for more of it.

 

[HaveBlue]

I feel like the efficiency graph has changed, but my trip meter results still suck. My trip meter says 1.64 over the last 950 miles while my efficiency meter sometimes tells me (after the update) that I’m rocking 2.4-2.8.

Yes, warmer. Yes, the law of averages. The efficiency graph at least has different ballistics now. They changed something on that driver screen graph.

(note, my efficiency sux overall. Maybe the second worse numbers in the forum)

Don't forget it matters how much you drive too. At 1% vampire 30% per month, there is a significant loss of efficiency there.

 

[Stan Evans]

I have def seen a marked improvement in the last few weeks. I think it started before the update, that was probably OK weather finally warming up, but the truck is def become much more efficient. We bought our dual motor standard+ last June. We were always right around 2.2, maybe seeing 2.8. Now, I see mid to high 3’s on a regular basis.
This a very interesting thread. Looking forward to following it and learning.

 

[Engineer]

I just reset trip A and took a 15 min trip. The graph said 3.2, and trip A showed 1.95 which is laughably different.

Based on my experience Trip A is correct. They used to match relatively well and the graph would provide an indication of instantaneous efficiency, however the graph seems to be more random now and less tied to how i am driving.

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