TFL: Ike Gauntlet Towing Test - F150 Lightning Lariat ER vs Hybrid Powerboost

[vandy1981]

This is one of the tests I've been most anticipating.

The lightning got 0.5 mi/kwh with nearly 10,000 pound load on the upslope.

I think the Rivian got about 0.37 mi/kwh with a 7000 pound load on the upslope when they tested it (16% of a 135 kwh battery over 8 miles). Keep in mind that the Rivian test was done in the winter.

Edit: @p52Ranch caught this discrepancy in the reported efficiency:

Even though the gauge display on the Lightning showed 0.5 Miles per KWh on the uphill test, the actual was about 0.38 miles per KWh. Using TFL's beginning and ending SoC (69% minus 53% resulting in a 16% delta. That converts to 21 KWh used (0.16 times 131). Divide 8 miles by 21 KWh that gives 0.38 miles per KWh.​

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[adoublee]

Lightning regen was way better at 6% of 131kWh gained than Rivian on way down as well, which might translate into real world driving regen impact comparison between the two.

 

[Easycamper]

Zero brake applications. It held about 50 mph the whole way down.

 

[hturnerfamily]

that was quite the 'quiet' comparison - 'screaming' for 8 minutes versus 'quiet pleasure' for 8 minutes..... nice : )

 

[gorwell]

which might translate into real world driving regen impact comparison between the two.

A "bonus", but no real world impact when towing a trailer...

That's about 8 miles at most while towing. If you unhooked your trailer at the bottom, you'd get 16 miles. So, either way, not a real world impact.

 

[adoublee]

A "bonus", but no real world impact when towing a trailer...

That's about 8 miles at most while towing. If you unhooked your trailer at the bottom, you'd get 16 miles. So, either way, not a real world impact.

Percentage of energy that makes it back into the pack during regen is a real world differentiation, independent of towing. This tow test just amplifies the delta.

 

[LightningShow]

It’s a real world difference when you’re 7 miles from a charger. I’m not sure what criteria you think constitutes a “real world difference” but if your total range is 100 miles then 8 miles is pretty meaningful.

 

[p52Ranch]

Even though the gauge display on the Lightning showed 0.5 Miles per KWh on the uphill test, the actual was about 0.38 miles per KWh. Using TFL's beginning and ending SoC (69% minus 53% resulting in a 16% delta. That converts to 21 KWh used (0.16 times 131). Divide 8 miles by 21 KWh that gives 0.38 miles per KWh.

 

[vandy1981]

Even though the gauge display on the Lightning showed 0.5 Miles per KWh on the uphill test, the actual was about 0.38 miles per KWh. Using TFL's beginning and ending SoC (69% minus 53% resulting in a 16% delta. That converts to 21 KWh used (0.16 times 131). Divide 8 miles by 21 KWh that gives 0.38 miles per KWh.

So pretty much equal to the Rivian. I wonder why the tripmeter and SoC don't match up. Maybe the trip meter only includes energy used for traction?

 

[p52Ranch]

So pretty much equal to the Rivian. I wonder why the tripmeter and SoC don't match up. Maybe the trip meter only includes energy used for traction?

The 0.5 Miles per KWh instead of 0.4 miles per KWh could be due to an algorithm that tries to keep the actual computation from extremes like zero and infinity. After all it is only 8 minutes/miles of trip data into the truck.

They had a similar incongruous display on the downhill trip meter. On the downhill portion of the test the trip meter was showing something like 12.7 miles per KWh even though they added something like 8 KWh back into the battery. Andre and Tommy kept wondering why it wasn't showing something like 99 miles per KWh.

 

[webspoke]

Zero brake applications. It held about 50 mph the whole way down.

This is a big deal in driver stress, only the best HD trucks can come close to that. Great test to watch, really makes me excited for using the truck outside of commuting. We have 7-10k horse, car (enclosed) and utility trailers that we use close to home (within 50-75mi), this test gives me confidence it can easily handle those.

 

[FlasherZ]

This is a big deal in driver stress, only the best HD trucks can come close to that. Great test to watch, really makes me excited for using the truck outside of commuting. We have 7-10k horse, car (enclosed) and utility trailers that we use close to home (within 50-75mi), this test gives me confidence it can easily handle those.

I'll second this - going down mountains in our Teslas is far, FAR less stressful than going down in an ICE car. It's a great feeling when you need to keep your foot on the accelerator to go DOWN hills, or you'll stop. Makes regulating speed a breeze.

 

[LightningShow]

With it gaining 7% on the way down and using 16% on the way up, it’s only about a net of 9% loss. That means they could make the loop 11 times on a full charge, which means it’s got about 175-180 miles of range through the Ike loop.

i was impressed that the battery/motor temp didn’t go up at all during the test.

 

[Yellow Buddy]

I'll second this - going down mountains in our Teslas is far, FAR less stressful than going down in an ICE car. It's a great feeling when you need to keep your foot on the accelerator to go DOWN hills, or you'll stop. Makes regulating speed a breeze.

I didn’t even realize my Tesla has a brake pedal.

 

[Firestop]

Even though the gauge display on the Lightning showed 0.5 Miles per KWh on the uphill test, the actual was about 0.38 miles per KWh. Using TFL's beginning and ending SoC (69% minus 53% resulting in a 16% delta. That converts to 21 KWh used (0.16 times 131). Divide 8 miles by 21 KWh that gives 0.38 miles per KWh.

Interesting observation: Questions I’m now interested in being answered:

1. Does the dash gauge base its reading off of the total available batt power (131 minus any safety margin) or is it calculated off the manufacture spec of 131 kWh? To get .5 mi./kWh per the dash gauge, that would mean that only 100 kWh of available battery capacity.
2. Does the gauge reading round up or down?
3. Is the dash gauge instantaneous or an average, to include any regen?

I’m really looking forward to a deeper dive into the performance of the battery management system, charging speed and usable/available capacity……

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