24 GT less efficient than 22 GT

[Mach-Lee]

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.

Yes the pumps are going to be running more often to recover motor waste heat, etc. That's going to help your efficiency and range despite being louder.

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). ?‍?

FYI if you turn OFF climate control, in certain temperature ranges that can cause the battery to heat instead, which can use MORE power than if you left HVAC ON (counterintuitive right?). Which is why you might see the Climate Use bar expand after turning HVAC OFF since it's heating the battery now with the full 6 kW.

If the battery is already warmed up, then you should have no additional climate use if you shut off HVAC.

For consistent results you want to use a departure time (to make sure the battery is warm), and leave your HVAC ON set to the same thing each time (e.g. 68ºF AUTO 1 like in Mark's photo).

I never turn off HVAC unless I'm doing testing or at 5% battery, it's not usually a significant factor compared to my driving energy use at the highway speeds I normally drive. Plus I despise driving without any airflow or HVAC running.

Again, Ford is more proactive about keeping the battery and cabin warm with the latest changes, so if the car is kept outside, normally unplugged, or on a restrictive charging schedule, you may see greater energy use because of automatic battery conditioning while driving. Especially in the first half hour of driving until everything is warmed up.

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[intoMME]

Assuming that you live in a relatively sunny area...
Step 1: Get solar panels on your roof, if you don't have them already.
Step 2: Do your daily drive and top off your car to 90% each night.
Step 3: Enjoy your free electricity and don't worry about calculating numbers. Just drive, recharge, repeat.
Step 4: If you are concerned about efficiency and saving money, buy one new car and keep it until the wheels fall off and the battery won't let you get out of the driveway.

 

[RickMachE]

Didn’t heater size increase?

 

[Ahlarict]

Didn’t heater size increase?

Depends on the model, apparently: 2023.5+ Cooling System Redesign and Larger 7 kW Heater | MachEforum - Ford Mustang Mach-E News, Owners, Discussions, Community

 

[janstubbs]

I just replaced my '22 standard GT with a '24 GT with performance upgrade (same flower wheels). There is a minor increase in EPA range of 270 for the '22 to 280 for the '24. I expected to see no real difference in equivalent trips, however I am seeing about a 10% reduction in efficiency in the '24. I'm not talking about GOM, but actual mi/kwh reported in the Trip screen and % battery used. This is from my experience taking the exact same trips I have taken many times before. It's also not due to colder weather since it has been warming up and the trips in the '24 were warmer than recent trips in the '22. No preconditioning/departure time involved either.

A few things I notice. When cabin heat is set at the same temperature on the same level 2 Auto setting, the '24 is more aggresive and louder at heating the cabin. Plus the Climate Use percentage shown in Trip seems to be higher in the '24 which would account for some of the difference, but wouldn't expect that with slightly warmer temperatures and same HVAC settings. Also, the Acceleration rating in the Trip is much more sensitive. I realize this is GT with performance, but the same calm driving would never drop below 90 in the '22 and in '24 easily drops to low 80's.

I'm disappointed as I expected at least as good if not better efficiency and didn't go for 25 with heat pump since I was ok with the 22. Anyone else have similar experience or thoughts?

In my 22 Select I have to set temp to 78 to be comfy. It seems to lean towards colder in all situations.

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