24 GT less efficient than 22 GT

[markboris]

I also noticed a high consumption for climate on my 2024 the other day with ambient temperature at 50F. Most of my driving hasn’t indicated much difference in efficiency to me from my 2021 GT-PE (not that I really keep track, just my gut feeling). ??

I. Have never seen climate use this high: ??

Mine uses lots of climate also:

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[HuntingPudel]

Mine uses lots of climate also:

But you live where there is actual snow. No such thing here. ??

 

[markboris]

But you live where there is actual snow. No such thing here. ??

Yes that drive was around 3:00 pm today. It was snowing and temp was 31˚. Why doesn't it always show mi/kWh? Sometimes it does, other times just 0. I don't pay attention to this much even though I've had a Mach-E for over 4 years. ?

 

[HuntingPudel]

Yes that drive was around 3:00 pm today. It was snowing and temp was 31˚. Why doesn't it always show mi/kWh? Sometimes it does, other times just 0. I don't pay attention to this much even though I've had a Mach-E for over 4 years. ?

LOL I see zero a lot before the car decides to change it. I don’t recall my 2021 reading zero so often but I also don’t care so maybe I wasn’t looking. ??

 

[Mach-Lee]

So I think a lot of you are making the assumption:

Bigger climate bar = more energy used

...which may be incorrect. It's a percentage. So if the motors are more efficient, the driving bar will get smaller and the climate bar will get bigger.

My view is the decrease in indicated efficiency is probably just software. 2023.5 and later wants to keep the battery warmer using motor and PTC heat, the changes in battery temp may mess with the measure of kWh used. The BMS in the latest software also seems a little more inaccurate, so it could just be that.

You would have to actually measure the amount of power used from the wall to make a for-sure comparison. E.g charge to 90%, drive a trip, then charge to 90% and divide miles by kWh used (the figure will be lower than the car says due to charging losses).

New cars and tires will also be slightly less efficient due to tighter bearings and clearances, but I don't think you'd really notice that, very minor.

 

[phil]

3.0 mpk, with only 5% to climate use. I win!!! Well, either that, or these numbers are all a giant load of crap...

Though I will say at least my numbers look plausible. Some of the results you guys are getting look impossible.

 

[OON7]

So, here is my experience so far. The 24 GT w/ perf upgrade seems slightly less efficient in the winter than what I experienced in my prior 22GTPE. My work commute (26 miles mostly highway) was 10-13% of the battery in the winter on the 22 GTPE, and in the 24 it has been 12-15%. The heater seems stronger, the cabin/seats/wheel warm much quicker for me in the 24 than the 22 with the same exact settings.

This week it has shockingly been in the 70's in Ohio. The efficiency seems better in the warmer temps. The 22 GTPE pretty much was always 10% to work in warmer temps. The 24 has been around 7-8% driving home in the warmer temps.

My only real complaint/annoyance with the 24 is that the battery cooling/heating system is significantly louder in the 24 than the 22. The good part of that is I know it is preconditioning the battery because I can hear it. The annoying part is just hearing it run from time to time while driving. I'd be lying if I said I wasn't a bit disappointed by the noise.

 

[markboris]

So, here is my experience so far. The 24 GT w/ perf upgrade seems slightly less efficient in the winter than what I experienced in my prior 22GTPE. My work commute (26 miles mostly highway) was 10-13% of the battery in the winter on the 22 GTPE, and in the 24 it has been 12-15%. The heater seems stronger, the cabin/seats/wheel warm much quicker for me in the 24 than the 22 with the same exact settings.

This week it has shockingly been in the 70's in Ohio. The efficiency seems better in the warmer temps. The 22 GTPE pretty much was always 10% to work in warmer temps. The 24 has been around 7-8% driving home in the warmer temps.

My only real complaint/annoyance with the 24 is that the battery cooling/heating system is significantly louder in the 24 than the 22. The good part of that is I know it is preconditioning the battery because I can hear it. The annoying part is just hearing it run from time to time while driving. I'd be lying if I said I wasn't a bit disappointed by the noise.

And you are running the same exact tires on your '24 that you were running on your '22 GTPE? I ask this because two of us here that moved our wheels/tires over from our previous '21 GTPE to the '24 GT with Performance upgrade have not noticed any difference. All others that have, are not running the same tires they had on their previous car.

 

[Graction]

The new car has the same all season tire model but they are brand new with the car. Thanks for all those suggesting new tires and tighter bearings etc could contribute. I’ll see how it goes over time. I am not charging to 100%. Mostly 85-90. Some trips when it was lower and not on the charger. I will see how it does when it warms up. Does feel that the heater is working more in the winter.

Check out this trip!

 

[HuntingPudel]

You'll note, my session had zero miles, and yours was only 3.8 - Over the last two thousand very cold miles (by PNW standards), I'm only averaging around 13% to climate control and 2.5kwh/mi due to the temps and my chronic lead foot.

While that part of my drive home was small, the rest of the trip home from work left the climate use percentage mostly the same. It dropped to 48% by the time I parked in my driveway and I turned off climate control for about 10% of the trip home. I couldn’t believe the number either. I did not precondition the cabin, I just started the car and drove. I normally average 2.3 miles/KWh going to work and 2.8 coming home. There is more traffic coming home. I have not seen this disproportionate climate use before or since (it’s only been a couple of days since I saw that). ?‍?

 

[Mach1E]

The new car has the same all season tire model but they are brand new with the car. Thanks for all those suggesting new tires and tighter bearings etc could contribute. I’ll see how it goes over time. I am not charging to 100%. Mostly 85-90. Some trips when it was lower and not on the charger. I will see how it does when it warms up. Does feel that the heater is working more in the winter.

Check out this trip!

And now you know the problem with the measuring stick you’re using. ?

I don’t think that screen has ever been super accurate. It’s more of a “general idea on how your energy is used.”

And even if you try to calculate things yourself removing as many variables as possible (charge to 100%, find an empty road and drive it on cruise control at 60 mph until it stops running), a simple change of wind speed or direction will make a significant difference.

Bottom line? I don’t think your new car is measurably different from your old one.

And even if it was, I wouldn’t use that screen to determine it.

 

[moog]

I also noticed a high consumption for climate on my 2024 the other day with ambient temperature at 50F. Most of my driving hasn’t indicated much difference in efficiency to me from my 2021 GT-PE (not that I really keep track, just my gut feeling). ??

I. Have never seen climate use this high: ??

1.6 mi/kw ?!?!?!
What is this a drag race?!?!?

 

[markboris]

Had to drive to El Dorado Hills this morning. It is 75 miles from my home. Temp when started was 34˚ raining/hailing. As I approached EDH temp slowly climbed to 39˚ and was still raining most of the way. Cabin temp set to 68˚, driver seat heater on low, steering wheel heat on. Running my winter tires (Michelin Pilot Alpin PA4) tire pressure at 36 psi.

Now I have a more normal trip screen opposed to the one I had last night that looked similar to Steve's with the crazy climate use.

 

[OON7]

And you are running the same exact tires on your '24 that you were running on your '22 GTPE? I ask this because two of us here that moved our wheels/tires over from our previous '21 GTPE to the '24 GT with Performance upgrade have not noticed any difference. All others that have, are not running the same tires they had on their previous car.

I am not, good point. 22 GTPE was on winter tires with flower pedal rims for my winter comparison. 24 is currently on the all seasons it came with and the flower pedal rims. I do have my spoke rims and pirelli summer tires from the 22 but haven't decided if I am going to put those on the 24 when it warms up.

 

[HuntingPudel]

Had to drive to El Dorado Hills this morning. It is 75 miles from my home. Temp when started was 34˚ raining/hailing. As I approached EDH temp slowly climbed to 39˚ and was still raining most of the way. Cabin temp set to 68˚, driver seat heater on low, steering wheel heat on. Running my winter tires (Michelin Pilot Alpin PA4) tire pressure at 36 psi.

Now I have a more normal trip screen opposed to the one I had last night that looked similar to Steve's with the crazy climate use.

Yeah, I am also back to more or less normal looking percentages for climate and outside temp too. ?‍?

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