[kscarrol]

Originally Posted by MontyB1

I mean this thread just says M40 but not which one. I've had my M40d a few weeks and what are these 20 somethings mpg you speak of.

I'm averaging just below 40mpg but I haven't been doing many long journeys and been enjoying it too much I've only done 550miles so far and have only just given it its first fill that I've had to pay for.

No idea how well it could do on a longer run, will take it somewhere and see how it gets on.

Now you're just bragging!!

[prozack8684]

Getting between 25-27mpg average with my 2022 BMW X3 M40i depending on driving mood. I have 2600miles on mine now.

[freshxdough]

15-16 MPG each tank. Tuned and I drive it hard

[mattinfll]

in my '22 X4 M40 I am averaging 20 mpg, with mostly city and freeway traffic driving - and I usually drive in Sport mode.

[crazydrummer]

Was doing 27/28 on the stock 21 runflats, switched to pilot sport 4 all seasons….now getting 21-22 avg. I knew the rockflats were low rolling resistance but damn. Didn’t expect 5mpg

[335dFan]

Average over 12,545 miles: 25.331 mpg
Highest on road trip: 30.934 mpg
Lowest tankful: 20.616 mpg

[TacoRocket]

I finally did my trip out to east Texas. I got 19-20mpg on the highway. Probably didn't help going about 105...

I'm sure if I did comfort/eco mode I'd probably get better gas mileage!

[thompson134]

I'm another one with the M40D. Stage 1 rolled at 403HP and 793NM and my long term average is 37.4mpg (uk) over last 8000 miles (calc brim to brim measurements).

City \ Urban 33 - 36,
Normal Average 36 - 39 (including squirting whenever possible, which is less and less these days)
Long motorway runs can easily get 45 - 49mpg (cruise on at indicated 75mph).

I find the trip is approx. 0.5 - 0.8 optimistic

[lee229]

21 mpg, 50/50 local vs highway, 2700 miles

[TomCanada]

10.5L/100km (22.5 US mpg, 27 UK mpg) in mixed driving. About the same as my Q5, except that the m40i has 70% more ponies of course - so I'm happy

It'll be interesting to see how mileage varies with towing. We have a 3500lb travel trailer, and the Q5 increases fuel consumption about 60-70% when towing. Diesel trucks burn more to begin with but are much less impacted by towing, so they actually often burn less than a small SUV when towing. I'm curious how the m40i will behave. Anyone with experience?

[DanielWTang]

Just drove ~450km in my 22 X3 M40i and the mileage is 9.8L/100km (24 mpg) for mixed city and highway (sometimes even worse than city due to traffic) driving.

[Y3MUR]

15 mpg short journeys

[AVI8]

Around 21mpg with 60/40 city to highway driving at 2700 miles.

[Mistertmac]

682 mile trip, average speed of 74.2 mph and 25.1 MPG.

[TomCanada]

Just did a road trip ~ 120kph (75mph) and got 8.6L/100km (27 US mpg). Very nice!

[Chris Pringle]

Received our brand new ‘21 M40i from the dealer two days ago. We drove it home yesterday, a total distance of 780 Km (485 miles). As the engine is not broken in, we took it easy and drove most of the way in Eco Pro at an average speed of about 75 MPH, except for passing on some mountain sections in Comfort mode. We averaged 32 MPG (U.S. gallons) over the entire trip. From what I hear, mileage should only get better as the engine breaks in. 👍

[mattinfll]

I've now averaged 19.8 mpg over my first 1050 miles. I drive in Sport Individual (most settings at "comfort" except engine and steering), and I do have a bit of a heavy foot. But I've been more careful for break-in. I drive in Sport to avoid auto stop-start.

A mix of local and freeway driving.

[TacoRocket]

Tuned the car with stage 1. After slamming it a bit to feel the difference I got 12.4mpg. Lol

[Shaun170]

Mines gone up to 26mpg average today. 1,500 miles on the clock now.

[mwr1203]

23.5 mpg in comfort mode

[EVTee]

Usually around 13-15 mpg as I drive mostly in the city. I can get 26+ mpg on the highway.