15-18 mpg on a '19 540i?

sh4y4nn · 06-08-2025, 02:28 AM

Hey everyone, I got my 2019 540i M-Sport RWD recently, and it’s been getting 15-18 mpg. I’ve heard of people with 540s and M340s getting way upwards of 20 mpg, so I’m a little confused. Although to be fair I’ve been driving the car pretty hard and in sport plus for 90% of the time. So I guess I just want to know if that’s the main reason why, and if I start driving it less hard and keep it in eco pro/comfort, would my mpg be that much better? Also just to mention I wanted to know if tires or tire pressure could be a factor, as my rear tires are 245’s (last owner put spacers on so I’m guessing that might be why he put smaller width tires, not sure tbh). Thanks.

Chappers 71 · 06-08-2025, 02:39 AM

Yes it is due to the way you’re driving it.

Try adaptive mode & don’t drive it like your hairs on fire if you wanna see better mileage

AP · 06-08-2025, 08:43 AM

+1
i'd expect those figures if its being driven aggressively .
I had a 540 and I know on a gentle motorway drive you can get low 40mpg (Uk) without much effort .

Sounds like you are enjoying it!

adhrp · 06-08-2025, 08:43 AM

Quote:

Originally Posted by Chappers 71

Yes it is due to the way you’re driving it.

Try adaptive mode & don’t drive it like your hairs on fire if you wanna see better mileage

This.

Chappers 71 · 06-08-2025, 09:11 AM

I can average 14mpg in the G31

tsbrown · 06-08-2025, 11:50 AM

My old 2019 540i M Sport RWD with Dinan tune was coded to start in sport individual and I drove it in that mode 95% of the time on a mix of highways and surface streets. Averaged about 22mpg most of the time, neither flogging it nor babying it. So yeah, if you drive aggressively all the time it will drop. Long highway cruising at about 80mph it could get 33mpg+ and didn’t have the mild hybrid system.

Qsilver7 · 06-08-2025, 12:34 PM

Also…what is your average MPH? That will also affect your gas mileage. If you have a low MPH average, this usually correlates with heavy city/urban driving with lots of high RPMs (from taking off) and lots of stop-n-go situations.

The higher your average MPH, the better gas mileage (MPG) you’ll get. Giving your MPG without also giving your MPH is only giving partial info that could indicate what your driving style/condition is.

sh4y4nn · 06-08-2025, 12:37 PM

Quote:

Originally Posted by Qsilver7

Also…what is your average MPH? That will also affect your gas mileage. If you have a low MPH average, this usually correlates with heavy city/urban driving with lots of high RPMs (from taking off) and lots of stop-n-go situations.

The higher your average MPH, the better gas mileage (MPG) you’ll get. Giving your PMG without also giving your MPH is only giving partial info that could indicate what your driving style/condition is.

Ah this all makes sense now after seeing replies. Yes my average MPH is around 18-25 I think as I just drive to school and around town. Thanks for the help 🙏🏽

sh4y4nn · 06-08-2025, 12:38 PM

Quote:

Originally Posted by tsbrown

My old 2019 540i M Sport RWD with Dinan tune was coded to start in sport individual and I drove it in that mode 95% of the time on a mix of highways and surface streets. Averaged about 22mpg most of the time, neither flogging it nor babying it. So yeah, if you drive aggressively all the time it will drop. Long highway cruising at about 80mph it could get 33mpg+ and didn’t have the mild hybrid system.

Oh wow, alright I guess it really is just the driving mode. Thanks 🙏🏽

sh4y4nn · 06-08-2025, 12:38 PM

Quote:

Originally Posted by AP

+1
i'd expect those figures if its being driven aggressively .
I had a 540 and I know on a gentle motorway drive you can get low 40mpg (Uk) without much effort .

Sounds like you are enjoying it!

Ah ok that’s reassuring then, thought something was wrong for a second. Thanks!

sh4y4nn · 06-08-2025, 12:39 PM

Quote:

Originally Posted by Chappers 71

Yes it is due to the way you’re driving it.

Try adaptive mode & don’t drive it like your hairs on fire if you wanna see better mileage

That’s what I thought, I’ll try it in adaptive and see how it changes. Thanks

tsbrown · 06-08-2025, 01:41 PM

Quote:

Originally Posted by Qsilver7

Also…what is your average MPH? That will also affect your gas mileage. If you have a low MPH average, this usually correlates with heavy city/urban driving with lots of high RPMs (from taking off) and lots of stop-n-go situations.

The higher your average MPH, the better gas mileage (MPG) you’ll get. Giving your PMG without also giving your MPH is only giving partial info that could indicate what your driving style/condition is.

Good point about the typical rpm. I usually ran at 3000 or lower in my 540i. Sometimes hitting 4000+. The thing about the B58 is that it really comes alive above 3500rpm but if you’re used to driving it below that you still think it’s a great engine, because it is. In my F30 340i with 6MT I frequently was in the 3-5k rpm range.

ezaircon4jc · 06-08-2025, 04:23 PM

15-18 isn't bad at all. EPA is 19 city, and they're over optimistic.

ppointer · 06-08-2025, 10:06 PM

Seems low to me. According to Fuelly, my average is 28.6 for 20k miles. I have it in individual sport mode 100% of the time. Oh, my wife typically gets low 30mpgs if she drives a whole tank.

Qsilver7 · 06-09-2025, 08:33 AM

Quote:

Originally Posted by ppointer

Seems low to me. According to Fuelly, my average is 28.6 for 20k miles. I have it in individual sport mode 100% of the time. Oh, my wife typically gets low 30mpgs if she drives a whole tank.

Again…what is your avg MPH? Go to your OBC info and report back what your average MPH is so that we can compare that to your average MPG.

The OP is doing heavy urban driving…he’s getting between 18-25 average MPH (which is a low average) and tracks the description of his driving to school & around town and also using sport/spolrt+ mode.

If he was able to get into a driving situation where his average MPH increased to 25-35 MPH…he’d see his average MPG increase, too. But that would require a different driving situation where he didn’t have as much stop n go driving and could experience boulevard/parkway driving that had timed lights and didn’t have to stop as much…and where he could go for long distances where he could go longer distances driving between 35-55 MPH. This is how his average MPH could increase…which would in turn increase is average MPG.

Joe-BMW33 · 06-10-2025, 11:59 AM

Profiling due to the exhaust, is the car tuned?

06-08-2025, 02:28 AM	#1
sh4y4nn Registered 5 Rep 9 Posts Drives: 2019 BMW 540i M-Sport RWD Join Date: May 2025 Location: New York iTrader: (0)	15-18 mpg on a '19 540i? Hey everyone, I got my 2019 540i M-Sport RWD recently, and it’s been getting 15-18 mpg. I’ve heard of people with 540s and M340s getting way upwards of 20 mpg, so I’m a little confused. Although to be fair I’ve been driving the car pretty hard and in sport plus for 90% of the time. So I guess I just want to know if that’s the main reason why, and if I start driving it less hard and keep it in eco pro/comfort, would my mpg be that much better? Also just to mention I wanted to know if tires or tire pressure could be a factor, as my rear tires are 245’s (last owner put spacers on so I’m guessing that might be why he put smaller width tires, not sure tbh). Thanks. Attached Images Last edited by sh4y4nn; 06-08-2025 at 02:32 AM..
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06-08-2025, 02:39 AM	#2
Chappers 71 Major General 6428 Rep 5,981 Posts Drives: Beige G31 540ix m sport Join Date: Feb 2016 Location: Kent, The Garden of England iTrader: (0) Garage List 2018 G31 xdrive 40i ... [7.67] 2006 E92 335i SE [9.50]	Yes it is due to the way you’re driving it. Try adaptive mode & don’t drive it like your hairs on fire if you wanna see better mileage __________________ G31 40ix M Sport E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle
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06-08-2025, 08:43 AM	#3
AP Major General 3375 Rep 5,654 Posts Drives: G30 M550 Join Date: Apr 2011 Location: UK iTrader: (0)	+1 i'd expect those figures if its being driven aggressively . I had a 540 and I know on a gentle motorway drive you can get low 40mpg (Uk) without much effort . Sounds like you are enjoying it!
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06-08-2025, 09:11 AM	#5
Chappers 71 Major General 6428 Rep 5,981 Posts Drives: Beige G31 540ix m sport Join Date: Feb 2016 Location: Kent, The Garden of England iTrader: (0) Garage List 2018 G31 xdrive 40i ... [7.67] 2006 E92 335i SE [9.50]	I can average 14mpg in the G31 __________________ G31 40ix M Sport E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle Last edited by Chappers 71; 06-08-2025 at 11:55 AM..
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06-08-2025, 11:50 AM	#6
tsbrown Major 2480 Rep 1,443 Posts Drives: 2023 M550i xDrive Join Date: Jul 2010 Location: KY/MA iTrader: (0)	My old 2019 540i M Sport RWD with Dinan tune was coded to start in sport individual and I drove it in that mode 95% of the time on a mix of highways and surface streets. Averaged about 22mpg most of the time, neither flogging it nor babying it. So yeah, if you drive aggressively all the time it will drop. Long highway cruising at about 80mph it could get 33mpg+ and didn’t have the mild hybrid system. __________________ Bluegrass Bimmers Current: 2023 G30 M550i xDrive \| 2022 & 2018 G01 X3 xDrive30i Past: 2019 540i M Sport \| 2017 F30 340i M Sport/6MT \| 2013 E70 X5 3.5 \| 2011 E90 ///M3 6MT \| 2005 E46 330i ZHP 6MT \| 2001 E53 X5 3.0 \| 2000 E39 528i Sport/5MT \| 1998 E39 528iA \| 1997 E38 740i \| 1993 E36 318is
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06-08-2025, 12:34 PM	#7
Qsilver7 Major General 5882 Rep 9,163 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	Also…what is your average MPH? That will also affect your gas mileage. If you have a low MPH average, this usually correlates with heavy city/urban driving with lots of high RPMs (from taking off) and lots of stop-n-go situations. The higher your average MPH, the better gas mileage (MPG) you’ll get. Giving your MPG without also giving your MPH is only giving partial info that could indicate what your driving style/condition is. __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral. Last edited by Qsilver7; 06-09-2025 at 08:18 AM..
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06-08-2025, 04:23 PM	#13
ezaircon4jc Major General 6322 Rep 6,097 Posts Drives: 2019 540i M Sport Join Date: Jan 2015 Location: San Diego iTrader: (0)	15-18 isn't bad at all. EPA is 19 city, and they're over optimistic.
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06-08-2025, 10:06 PM	#14
ppointer Major 1180 Rep 1,296 Posts Drives: '01 Z3M, '12 335is, '22 540i Join Date: Jul 2013 Location: FLL iTrader: (4) Garage List 2009 528i [8.60] 2022 BMW 540i [0.75] 2008 Infiniti QX56 [5.00] 1967 Chevrolet Corv ... [10.00] 2012 BMW 335i [8.29] 2001 M Roadster [10.00] 2012 BMW 335is [7.93] 2013 BMW M3 Vert [9.67]	Seems low to me. According to Fuelly, my average is 28.6 for 20k miles. I have it in individual sport mode 100% of the time. Oh, my wife typically gets low 30mpgs if she drives a whole tank.
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06-10-2025, 11:59 AM	#16
Joe-BMW33 Major General 10018 Rep 8,680 Posts Drives: '18 M550i\|'21 X5\|'03 540i Join Date: Apr 2021 Location: Boston iTrader: (1) Garage List 2013 VW Tiguan [0.00] 2015 Infiniti QX60 [0.00] 2021 BMW X5 [0.00] 2003 BMW 540i [10.00] 2018 BMW M550 [10.00]	Profiling due to the exhaust, is the car tuned? __________________ 2018 M550ix\|Carbon Black\|Dinan Modifications\|2003 540i\|Jet Black\|M-Sport\|2021 X5 Mineral White Prior BMW's: 1987 325e\|1993 740i\|1998 740il\|2001 530i\|2002 745li\|2007 750li\|2006 750li\|2001 530i\|2012 535xi\|
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