[heelsmj]

I have only driven my car about 300 miles so far but I am averaging only around 18-19 MPG in almost exclusively city driving. I am coming from a 2020 M340 and this is considerably worse. Is this normal?

[Jonesymx29]

I have a short commute to the office (less than 10 mi) and there's like 1.5 mi of highway time. Doing strictly that, I average around 23.5-24. Driving in comfort mode 98% of the time except for when I find a stretch of open pavement... I click it up into sport and get on it.

I would say that's low enough to be unusual, but maybe there are contributing factors, like running the AC up high? Are you in sport mode a lot?

[heelsmj]

Originally Posted by Jonesymx29

I would say that's low enough to be unusual, but maybe there are contributing factors, like running the AC up high? Are you in sport mode a lot?

No sport mode. I am in south Florida and it’s been obscenely hot so AC is always running pretty high but that was always the case with my last car as well.

[Jonesymx29]

Hmm, definitely odd! Even up here in the dead of winter, heat up on blast, the worst I was seeing was around 22. Roads to the office range in speed from 25-45. I noticed my fuel economy improve by like .5 MPG overall once I had like 1000 miles on it.

[LivingInSalt]

I've never had a tank of gas get me less than 20mpg. I run exclusively in Sport or Sport Plus

[MPR]

On consecutive days that I go to the office, which is 99% highway with no traffic lights I stay in the low (very low) 30's. I always sit in eco pro when I'm cruising on the highway, maybe random dips into sport plus to pass someone or whatever.

[Evilmoretea]

I have a similar post from about 6 months ago on a UK 230i. It gets noticeably better with run in. Give it until over 1k miles.

Also city driving I always got similar mileage to what you reported. Highway the thing got around 40 if I didn’t push it and 30-35 if I had some fun.

[heelsmj]

Originally Posted by Evilmoretea

I have a similar post from about 6 months ago on a UK 230i. It gets noticeably better with run in. Give it until over 1k miles.

Also city driving I always got similar mileage to what you reported. Highway the thing got around 40 if I didn’t push it and 30-35 if I had some fun.

That is great to hear thank you.

[pbw]

My recent journey of 179 miles, mixture of A, B and motorways in U.K. reporting 40.2 mpg if there figures are correct I am amazed, especially as I wasn’t dordling around on the motorway! Have a 240i xdrive.

[LivingInSalt]

just so everyone knows, UK gallons are bigger than US gallons

[Cwatt79]

Also, the car is very optimistic in its fuel economy reporting. I track every fill-up with Fuelly, and the calculated economy is usually 3-4 MPG (US) less than the car claims. For example, for an average tank with my highway-heavy commute and typical city errands, the car usually reports 37-40 MPG, but I usually calculate 34-36 MPG.

[BlueLEDz]

Originally Posted by Cwatt79

Also, the car is very optimistic in its fuel economy reporting. I track every fill-up with Fuelly, and the calculated economy is usually 3-4 MPG (US) less than the car claims. For example, for an average tank with my highway-heavy commute and typical city errands, the car usually reports 37-40 MPG, but I usually calculate 34-36 MPG.

I too have found the car gives fuel economy numbers for what it thinks you want to see. I have mostly city driving and it’s always 1-2 MPG better then the old pen and paper math method.

[LivingInSalt]

Originally Posted by Cwatt79

Also, the car is very optimistic in its fuel economy reporting. I track every fill-up with Fuelly, and the calculated economy is usually 3-4 MPG (US) less than the car claims. For example, for an average tank with my highway-heavy commute and typical city errands, the car usually reports 37-40 MPG, but I usually calculate 34-36 MPG.

34-36mpg?! What on earth

[Cwatt79]

Originally Posted by LivingInSalt

34-36mpg?! What on earth

Notice I’m driving a 230i lol. But yeah, I have a 50-mile round trip commute, 47 of which are interstate, so my fuel economy is pretty stellar.

[ryo-]

I average about 16-18 city driving and 30 highway. I do drive in sport+ manual mode and comfort on highway though.



click on that banner to see some stats

[inc235]

For me it has been generally more fuel efficient vs. my prior car despite more hp/torque.

[Jashue]

I've had the car for 13 months. Milage is pretty decent.

[advr6]

I do mostly highway driving with adaptive cruise in comfort mode and my average consumption is 29 mpg. Best on a tank was 32mpg now that summer is here and construction has started which reduces the speed to 60 mph for 20 miles of the 100 mile drive.

[DAXXR]

Had car for 3.5 months, nearly 5000 miles and average 34 mpg
Seen 42mpg on a run

[LivingInSalt]

y'all are crazy. mine is at 22.2mpg for my 9 months/8200 miles

[Invisiblename]

Originally Posted by LivingInSalt

y'all are crazy. mine is at 22.2mpg for my 9 months/8200 miles

We know which car to avoid when it enters the 2nd hand market! 😳😜

[LivingInSalt]

Originally Posted by Invisiblename

We know which car to avoid when it enters the 2nd hand market! 😳😜

It's likely worse for an engine to never approach 3500 rpms for years on end