Highest Efficiency Number You’ve Seen?

[dsimpkins]

Managed 5.2 coming home from work, about 7.5 miles

 

[LukeTim]

I managed about 8 m/kWh on “since last charge” coming home from a public charger in Eco mode once. About 1.5 miles.

 

[NLMGSAN]

I managed about 8 m/kWh on “since last charge” coming home from a public charger in Eco mode once. About 1.5 miles.

Best one over 86 km, about 60 km highway is 12,9 kWh per 100km. But this is one-way. The other direction was 14,9. So it very much depends on circumstances, mostly the wind and temp (about 25 Celsius during these trips)

 

[DerekH]

Best I have managed started near the top of a hill, OPD and high regen.. gotta love the range estimate LR..

 

[ianmandrake]

You can max out the readout if you start at the top of a hill. I think someone did that and reported something like 20 miles/kwh.

As far as I've seen, 20 appears to the maximum it can display

Best one over 86 km, about 60 km highway is 12,9 kWh per 100km. But this is one-way. The other direction was 14,9. So it very much depends on circumstances, mostly the wind and temp (about 25 Celsius during these trips)

Yesterday

 

[DavecUK]

In the summer I have managed around 5.3 between charges. This was the end average after 275 miles.

The transitory figures are irrelevant.

 

[Bazzer44]

You can max out the readout if you start at the top of a hill. I think someone did that and reported something like 20 miles/kwh.

Yes mine does that and can stay that for something like 6 or 6 miles
Have a competition with myself to see how long I can keep it on that
I know I know I am a sad sod ?

 

[Vipar]

I drove from Bexley Kent to Snetterton race track yesterday in my MG4 Trophy ER and got 4.8 using ECO Mode. No a/c

 

[Yellowelise]

We hit the 20 coming down Shaldon hill.
It seems to be a limit as we hae never managed to get above this
MGZS

4.4 is my norm around town and sometimes up to 8

 

[Joningy]

What’s the highest efficiency number you’ve seen?

For me it was 7.3 mls/kwh which was after a short 2.8 mile journey.

Must have been downhill all the way lol, I've had 5 and 6 on several occasions, but it soon reverts to under 4 on our local country roads and a fair bit less on dual carriageway/motorway.
I'm convinced it only an indication and cannot be relied on as very accurate.

We hit the 20 coming down Shaldon hill.
It seems to be a limit as we hae never managed to get above this
MGZS

4.4 is my norm around town and sometimes up to 8

Sounds like a typical incidence of what we used to call a "tuned speedo" IE, not at all accurate!!!

 

[fnegroni]

Best figures over a long run for me are commuting to work. 200 miles in four days at 4.8 4.3 m/kwh av.
in eco power with eco hvac on auto at 25C

 

[DixieTGS]

That's impressive for real world, driving round trips. It's not far off the 5.2 for city driving that's on the website specs which is bound to be for idealised conditions.

 

[fnegroni]

That's impressive for real world, driving round trips. It's not far off the 5.2 for city driving that's on the website specs which is bound to be for idealised conditions.

I just corrected the figure as I thought I had written 4.3.
4.8 was only one way on a mild day. ??‍
4.5 av over 2 days
But over the week it rained too and temps got lower.

 

[Rolfe]

It's all extremely temperature-dependent as well as being affected by driving style. I have seldom seen the 100% range figures I was getting last year (a lot of warm days) this time round. But then if there is a scorcher, wow. I've resigned myself to never seeing the sort of numbers people in the south of England or indeed on the continent are reporting, or at least not often. I console myself by remembering how cheap the car is to fuel up, that I don't often need to test the limits of its range, and cool temperatures are better for battery longevity.

 

[wattmatters]

I have seldom seen the 100% range figures I was getting last year (a lot of warm days) this time round.

I designed a normalised range estimate chart which take the cars SOC and range remaining readings and refactors them to indicate the range if SOC was 100% (since 100% SOC only happens very occasionally).

It's interesting to see the patterns after nearly six months of capturing the data:

Dips are due to highway driving, peaks are due to periods of tootling about local town(s).

 

[Yellowelise]

I designed a normalised range estimate chart which take the cars SOC and range remaining readings and refactors them to indicate the range if SOC was 100% (since 100% SOC only happens very occasionally).

It's interesting to see the patterns after nearly six months of capturing the data:

View attachment 30166

Dips are due to highway driving, peaks are due to periods of tootling about local town(s).

Wow how did you do that, did you manually add each trip in over that period?

 

[wattmatters]

Wow how did you do that, did you manually add each trip in over that period?

It's all done automagically.

I have the SAIC API integration with Home Assistant. The SOC and range estimate data are included amongst dozens of data entities the system provides periodically. All stored in an influx database and charted using grafana.

So with a little simple maths using the range estimate and SOC I have it calculate what the range estimate would be if SOC was at 100%. Naturally the economy rate is just inversely proportional to that (a little more simple maths), so can chart them both:

It will be interesting to see how it pans out over the long haul.

 

[Rapax]

For now is 3.9ml or 16kw/100km for the last 1000km. Mixed driving. Best was 12.8/100km. 77 ER.

 

[fourevah]

What's the highest mi/kwh that you have seen on a single journey? I was tickled to see this. It went up to 6.9, but had dropped to 6.7 by the time I managed to park up and snap a picture.

 

[bedsev]

Had my first panic on a 200 mile trip home last night. Thought I'd make it easily as I usually get over 20 miles per 10% battery but as I got to 30% I realised that my mpkm had been steadily dropping and was down to 3.1 and I was getting about 15 miles per 10% and have 40 miles to go. Very very stressfull. Pulled into Leicester East services on M1 and assumed I would be able to charge, couldn't see any, pulled out Zapmap, NOTHING! I trhought that all services had charging these days. Luckily there was a Maccys with 4 fasts Instavolts a few miles off the motorway so I managed to get there and luckily they worked. I'm guessing a dramatic drop in temperature caused it (I did not have the heater or wipers on etc). I'm never going to get in that situation again, I'll always get more than enough charge when I can (I could have stopped at Trentham Tesla but chose not to).