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Unexpectedly low range

rdr854

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To get 2.7, you must do a lot of low speed driving.
After 16,368 miles, my average is still 2.7 miles per kwh.

I just finished a trip from Northern Virginia down to Richmond. With the ambient temperature in the 80s, I got 2.8 miles per kwh going down and coming back. For both trips, I had the AC running and set to 79 degrees on the driver's side and 78 degrees on the passenger side. I started the trip with 100 percent SOC and 367 miles on the GOM and 79 percent SOC and 276 miles on the GOM when I arrived in Richmond. While we drove around Richmond a little bit, by the time we got back home, we were down to 47 percent SOC and 153 miles range left on the GOM. By my estimate, my correct range at 2.8 miles per kwh should translate to 366.8 miles of range, assuming a 100 percent charge. At 80 percent, my average range (assuming 2.7 miles per kwh) should be 282.96 miles.

Again, I do not do anything special, except that I do not exceed 65 mph, and generally try to drive 55 or 60 mph on the highway if safe to do so. I also minimize my air conditioning.

Please let me know if my math is wrong.

Forgot to add the pictures:

Ford F-150 Lightning Unexpectedly low range Start of Trip - NOVA to Richmond VA
Ford F-150 Lightning Unexpectedly low range Arrival in Richmond VA
Ford F-150 Lightning Unexpectedly low range Trip Home - Richmond to NOVA





For the trip to Richmond, I preconditioned for the trip down, but did not do so for the trip back.
 
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davehu

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staying below 65 helps. on a recent trip I experimented from the "THIS TRIP" screen driving 75 (temp was 80) flat ground I was getting 2.1kw/m. Slowing down to 65 for about 20 miles I saw it increase to 2.3kw/m. I suspect that at 55-60 it might be 2.5kw/m.

Also: I didn't read through all 9 pages of posts, but the original poster said he had his tires pumped to 42psi. Fords recommendation is 36psi. not sure if that makes much of a difference but I thought it worth mentioning
 
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Computermedic78

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staying below 65 helps. on a recent trip I experimented from the "THIS TRIP" screen driving 75 (temp was 80) flat ground I was getting 2.1kw/m. Slowing down to 65 for about 20 miles I saw it increase to 2.3kw/m. I suspect that at 55-60 it might be 2.5kw/m.

Also: I didn't read through all 9 pages of posts, but the original poster said he had his tires pumped to 42psi. Fords recommendation is 36psi. not sure if that makes much of a difference but I thought it worth mentioning
One of the recommendations here was to increase the tire pressure so I gave it a shot. It didnt help. I wish I could get better range, but theres a 0% chance of driving slower. 70 is already too slow. At least the warmer weather has me up to 1.8, which still seems lower than what everyone else is getting.
 

mrau

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but the original poster said he had his tires pumped to 42psi. Fords recommendation is 36psi.
My door sticker says 42 PSI. I think it depends on model, equipment and make/size of tires that determine the recommended tire pressure.

My 18" spare is recommended at 36 PSI.

Ford F-150 Lightning Unexpectedly low range Screenshot 2024-07-28 at 12.13.07 PM
 

davehu

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My door sticker says 42 PSI. I think it depends on model, equipment and make/size of tires that determine the recommended tire pressure.

My 18" spare is recommended at 36 PSI.

Screenshot 2024-07-28 at 12.13.07 PM.jpg
from my 23 Lariat ER
Ford F-150 Lightning Unexpectedly low range tire info door sticker
 

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mrau

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Well that is interesting.

Mine '23 Lariat ER (Oct 23 build)came with Goodyear Wrangler Territory 2T All Season tires.

I notice my Combined weight of Occupants & cargo is rated higher than yours ,1807 lbs v 1546 lbs.

Not sure if that is just because of the tire rating of 116T.
 
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Computermedic78

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It varies, but I figured I had nothing to lose and it's easy enough to change. The increased pressure did make for a rougher ride though. I still havent replaced the tires either, the all seasons are awful for anything other than pavement. I use it like a truck, so those need to go before I get stuck someplace I cant get out of.
 

TaxmanHog

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Also: I didn't read through all 9 pages of posts, but the original poster said he had his tires pumped to 42psi. Fords recommendation is 36psi. not sure if that makes much of a difference but I thought it worth mentioning
Tire specific

There was a period of time that 23's were only coming with AT tire due to lack of supply, I wondered if the factory put on appropriate tire placards for the affected trucks.
 

RickLightning

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After 16,368 miles, my average is still 2.7 miles per kwh.

Again, I do not do anything special, except that I do not exceed 65 mph, and generally try to drive 55 or 60 mph on the highway if safe to do so. I also minimize my air conditioning.

Please let me know if my math is wrong.

For the trip to Richmond, I preconditioned for the trip down, but did not do so for the trip back.
That is exactly what you do special. I drive 73 in a 70 zone. I drive 3 to 5 miles over the speed limit up to 75mph.

There is no preconditioning in the 80s.
 

krobzaur

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I live in rural Minnesota, and I’m seeing numbers similar to the OP. It’s normal for the truck, which is the result of colder weather and higher speeds.

I’ve spent a lot of time monitoring mine with an OBD reader, and the coolant heater draws a LOT of power. It peaks as high as 12 kW, and stays between 2-4 kW to keep the cabin warm in 30º weather. Depending on how fast and far you’re driving, that can be over 10% of your overall consumption. Which is huge. In comparison, my Model Y would pull less than half that with its heat pump. I’d expect 2024 trucks with the heat pump to have a significant benefit in the cold weather.

Cold, dense air also plays a big part in it. You can’t get around the physics of pushing more air out of the way at a given speed, and that’s magnified when you’re going into a headwind. I don’t think there’s anything wrong with the truck, but it really sucks if it won’t work for you like this.
Old thread, but what are the names of the PIDs for heater power consumption and what app did you use to monitor them? I’m really interested in monitoring this so I can confirm when battery pre-conditioning is kicking on.
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