Unreal fuel economy! 65 MPG 170 mile trip

Alistairjh · 05-16-2023, 11:45 AM

I do not normally post in forums both I thought I would as I was so pleasantly surprised by how economical it is but also to show everyone it is possible!

I was driving in comfort, a mixture of driving, motorway, A and B roads, traffic and city, also partially through the hilly wolds with some spiritual driving at times, but generally careful normal driving.

In my first month of ownership of it, just as economical as my previous f20 320d. An unreal bit of kit from BMW.

To confirm fuel values are from fillup.

What’s everyone else getting out of interest?

Charlisdad · 05-16-2023, 01:12 PM

Regularly get between 55 and 60mpg from my M340D on motorway runs and 45mpg+ around town.

Martyn86 · 05-20-2023, 02:57 AM

Quote:

Originally Posted by Charlisdad

Regularly get between 55 and 60mpg from my M340D on motorway runs and 45mpg+ around town.

Thought I was doing good getting 50-52mpg out of my m340d!

Charlisdad · 05-20-2023, 12:14 PM

Quote:

Originally Posted by Martyn86

Thought I was doing good getting 50-52mpg out of my m340d!

My motorway runs are between 125 and 200 mile each way though so probably why I'm so good economy.

paulockenden · 05-20-2023, 02:35 PM

Going from ooop north to the south always has better MPG because it’s down hill.

Carl99 · 05-21-2023, 03:42 AM

I'm getting 50mpg average from my 330i. Seeing ~40mpg around town and +50mpg on longer drives. I have seen 62mpg a regular 80 mile trip but usually high 50's. All in EcoPro. Comfort looses but 2-3mpg.

Fox530 · 05-21-2023, 05:06 AM

I was quite pleased with the 47mpg from my M340i on a long Motorway journey until I read this thread

mondayze · 05-21-2023, 02:07 PM

Quote:

Originally Posted by Fox530

I was quite pleased with the 47mpg from my M340i on a long Motorway journey until I read this thread

47 is unbelievable from an M340i. The previous posts are from diesels. Were you in eco mode the whole time? I average 30mpg in my m340i on freeways

TuffLittleUnit · 05-21-2023, 03:11 PM

Quote:

Originally Posted by mondayze

47 is unbelievable from an M340i. The previous posts are from diesels. Were you in eco mode the whole time? I average 30mpg in my m340i on freeways

UK forum so we're talking "imperial" gallons here which have about 1.2 times more volume than the US gallon.

I don't really trust the BMW figures. I did a ~200 mile journey last week in my 420d and the car reckoned the economy was 69.2mpg whilst the My BMW app claims I got 72.2mpg ... all whilst I averaged just under 60mph in rush hour traffic.

My maths isn't brilliant but even I can work out that doing 199 miles using 3.3 gallons of diesel is more like 60mpg.

G30M · 05-21-2023, 04:34 PM

Quote:

Originally Posted by mondayze

47 is unbelievable from an M340i. The previous posts are from diesels. Were you in eco mode the whole time? I average 30mpg in my m340i on freeways

It's that downhill I wonder. Gotta do both ways to eliminate gravity and wind.

Fox530 · 05-21-2023, 04:36 PM

Quote:

Originally Posted by mondayze

47 is unbelievable from an M340i. The previous posts are from diesels. Were you in eco mode the whole time? I average 30mpg in my m340i on freeways

It was 400 miles of motorway at the speed limit. I was amazed. It was in eco mode, yes.

It doesn't seem to be much less efficient then my 530d was.

Ace555 · 05-21-2023, 10:33 PM

I commute up and down the motorway in my M340d. I regularly see high 60’s low 70’s.

xenon · 05-22-2023, 06:31 AM

Blimey - a post about 340d fuel economy and the word "witchcraft" has not been used. Well at least, not yet.

bmnut · 05-22-2023, 10:40 AM

There's still time!!!....

Dave_3 · 05-22-2023, 01:11 PM

Quote:

Originally Posted by xenon

Blimey - a post about 340d fuel economy and the word "witchcraft" has not been used. Well at least, not yet.

Quietly backs out of the thread......

D.

Alistairjh · 05-24-2023, 09:43 AM

I actually averaged higher on the way back, a lot of 50 mph cruising on a17! A different route back, but as someone mentioned, it could also be downhill!

I don’t drive around thinking about a fuel economy otherwise I wouldn’t have got the 3 litre but just blowed my mind.

I never use eco as it’s feels horrible and for the pence it’s potential saving, it sacrificing the feel and comfort of what makes this car so good.

05-16-2023, 11:45 AM	#1
Alistairjh Registered 0 Rep 2 Posts Drives: BMW G20 330D Join Date: May 2023 Location: Norfolk, UK iTrader: (0)	Unreal fuel economy! 65 MPG 170 mile trip I do not normally post in forums both I thought I would as I was so pleasantly surprised by how economical it is but also to show everyone it is possible! I was driving in comfort, a mixture of driving, motorway, A and B roads, traffic and city, also partially through the hilly wolds with some spiritual driving at times, but generally careful normal driving. In my first month of ownership of it, just as economical as my previous f20 320d. An unreal bit of kit from BMW. To confirm fuel values are from fillup. What’s everyone else getting out of interest? Attached Images Last edited by Alistairjh; 05-16-2023 at 11:52 AM..
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05-16-2023, 01:12 PM	#2
Charlisdad Private First Class 66 Rep 116 Posts Drives: M340D, 320d M Sport Join Date: Apr 2021 Location: Durham iTrader: (0)	Regularly get between 55 and 60mpg from my M340D on motorway runs and 45mpg+ around town.
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05-20-2023, 02:35 PM	#5
paulockenden Major 584 Rep 1,230 Posts Drives: 330e xDrive Touring Join Date: Oct 2020 Location: South Coast iTrader: (0)	Going from ooop north to the south always has better MPG because it’s down hill.
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05-21-2023, 03:42 AM	#6
Carl99 Private 12 Rep 58 Posts Drives: BMW 330i M-Sport G20 06/19 Join Date: Sep 2022 Location: Oxfordshire iTrader: (0)	I'm getting 50mpg average from my 330i. Seeing ~40mpg around town and +50mpg on longer drives. I have seen 62mpg a regular 80 mile trip but usually high 50's. All in EcoPro. Comfort looses but 2-3mpg.
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05-21-2023, 05:06 AM	#7
Fox530 Lieutenant 43 Rep 584 Posts Drives: M340i xDrive Join Date: Sep 2010 Location: United Kingdom iTrader: (0)	I was quite pleased with the 47mpg from my M340i on a long Motorway journey until I read this thread __________________ Current: 2021 M340i xDrive, 2001 530i Sport Previous: 2015 530d M Sport, 2010 530d SE, 2008 335i M Sport
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05-21-2023, 10:33 PM	#12
Ace555 Enlisted Member 6 Rep 39 Posts Drives: G21 M340d Touring Join Date: Oct 2019 Location: Northamptonshire iTrader: (0)	I commute up and down the motorway in my M340d. I regularly see high 60’s low 70’s. __________________ His and Her's BMW household... BMW 3 Series 320d F30 BMW 1 Series 118i F40
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05-22-2023, 06:31 AM	#13
xenon Major General 1403 Rep 8,092 Posts Drives: 2021 G21 330i M-Sport Join Date: Jun 2008 Location: Coventry iTrader: (0)	Blimey - a post about 340d fuel economy and the word "witchcraft" has not been used. Well at least, not yet. __________________ Ian Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
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05-22-2023, 10:40 AM	#14
bmnut Colonel 815 Rep 2,186 Posts Drives: M440i xDrive Join Date: Aug 2013 Location: North East England iTrader: (0)	There's still time!!!....
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05-24-2023, 09:43 AM	#16
Alistairjh Registered 0 Rep 2 Posts Drives: BMW G20 330D Join Date: May 2023 Location: Norfolk, UK iTrader: (0)	I actually averaged higher on the way back, a lot of 50 mph cruising on a17! A different route back, but as someone mentioned, it could also be downhill! I don’t drive around thinking about a fuel economy otherwise I wouldn’t have got the 3 litre but just blowed my mind. I never use eco as it’s feels horrible and for the pence it’s potential saving, it sacrificing the feel and comfort of what makes this car so good.
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