Fuel Economy Predictions?

[BKMK5]

Originally Posted by SD Z4MR

The short answer is no, no one else besides BMW has any idea "realistically" what the mileage will be until BMW publishes it, and I have it on good knowledge from someone who works for BMW NA that the EPA tests haven't been done yet. Anything else is pure speculation.

Just like most other characteristics of the F80/82 that people love arguing about without waiting a couple more months. I'll be waiting at the dealer to get a test drive the first day they get it in(which will be mineral grey from which the manager told me) !

[mkoesel]

Originally Posted by mdgrwl

I've read 25% higher so that puts it right around 25mph highway.

Sounds about right. Roughly like an E46 M3 seems like a fair bet.

But I've also seen 32-34mpg highway somewhere... does anyone know where this will realistically be?

So, like 600 miles on a tank of gas? Not in this decade. Maybe in 2020.

[Kadema]

Originally Posted by mdgrwl

I've read 25% higher so that puts it right around 25mph highway.

But I've also seen 32-34mph highway somewhere... does anyone know where this will realistically be?

There's a misunderstanding. BMW claim 25% lower consumption according to EU-norm, which is usually unrealistically low. It's just because of maths that this translates to 33% higher milage ( 1/(100%-25%) ).

Official combined EU fuel consumption is 8.3l/km with DCT which is equivalent to 28.34mpg. Highway: 6.7l/km ~ 35.1mpg. City: 11.1l/100km ~ 21.2mpg.

Milage with MT is a bit lower. I don't know how realistic US testing is, though. 35.1mpg can only be achieved by going 55mph quite constantly, I think.

[Boss330]

EU test cycles have just been revised to get a more realistic number that is repeatable in real world situations.

[filip75]

The last calculation and EU to US conversion I saw came up with 25.2MPG combined (US), so that would be about 28-30 hwy and about 19-21 city.

[e46e92love]

Originally Posted by filip75

The last calculation and EU to US conversion I saw came up with 25.2MPG combined (US), so that would be about 28-30 hwy and about 19-21 city.

If true, that's sick but not a surprise as my old n54 tuned to 375hp e92 335i got 30mpg crushing at 70 on the highway.

Cheers,
e46e92

[MRV99]

I am sure mileage will vary greatly per person. City I average 12-13, highway 18-19. I have read others are getting city mileage as good as my highway numbers. I view this as i may get 25% better based on how I drive which in my eyes will be huge. Not that I am running short on gas money, its just that i would rather not have a personal relationship with my gas station employees like I do now. I guess that is also due to the wife's x5 getting comparable mpg numbers heheh

[Sedan_Clan]

If the new car can at least better my average tank in the E9X M3 (..330 miles) and match what I can achieve in the 335i (..415-430 miles if I try; between 375-400 on average), I'll be a happy camper.

[filip75]

I just stumbled upon the technical data on the BMW.com website ( http://www.bmw.com/com/en/newvehicle...ata/index.html )

Here is what is says for fuel economy (my guess is that the first number is for Manual transmission and the second is for auto):

Urban in L/100km - 12.0 (11.1)
Extra urban in L/100km - 6.9 (6.7)
Combined in L/100km - 8.8 (8.3)

Using a converter ( https://www.google.com/search?q=l%2F...ddress&ie=&oe= ) we come up with the following results:

City in US MPG - 19.6012 (21.1905)
Highway in US MPG - 34.0891 (35.1067)
Combined in US MPG - 26.72 (28.33)

Tank capacity is 60 liters = 15.85 Gal.

So, according to these figures, the combined range on a tank would be 423.42-449.03 miles. At a current US national average for Super Unleaded gas being $3.65/gal - that translates to:

$57.85 / tank - $0.136 - $0.128 / mile

This is phenomenal in my book.

All of that is listed with a disclaimer:

"The figures for fuel consumption and CO2 emissions depend on the wheel and tyre sizes selected.

Further information on the official fuel consumption and on the official specific CO2 emissions of new automobiles can be found in the guidelines on fuel consumption and CO2 emissions of new automobiles which are available free of charge at all retail outlets and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany..." (BMW, 2013)

So, these figures are given for 18" tires.

[Kadema]

Originally Posted by filip75

I just stumbled upon the technical data on the BMW.com website ( http://www.bmw.com/com/en/newvehicle...ata/index.html )

Here is what is says for fuel economy (my guess is that the first number is for Manual transmission and the second is for auto):

Urban in L/100km - 12.0 (11.1)
Extra urban in L/100km - 6.9 (6.7)
Combined in L/100km - 8.8 (8.3)

Using a converter ( https://www.google.com/search?q=l%2F...ddress&ie=&oe= ) we come up with the following results:

City in US MPG - 19.6012 (21.1905)
Highway in US MPG - 34.0891 (35.1067)
Combined in US MPG - 26.72 (28.33)

Tank capacity is 60 liters = 15.85 Gal.

So, according to these figures, the combined range on a tank would be 423.42-449.03 miles. At a current US national average for Super Unleaded gas being $3.65/gal - that translates to:

$57.85 / tank - $0.136 - $0.128 / mile

This is phenomenal in my book.

All of that is listed with a disclaimer:

"The figures for fuel consumption and CO2 emissions depend on the wheel and tyre sizes selected.

Further information on the official fuel consumption and on the official specific CO2 emissions of new automobiles can be found in the guidelines on fuel consumption and CO2 emissions of new automobiles which are available free of charge at all retail outlets and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany..." (BMW, 2013)

So, these figures are given for 18" tires.

That's basically what I wrote above. I didn't link it, of course, but since the official numbers were already revealed on this board I thought it wouldn't be necessary. I doubt 18" rims will cause a lower consumption than 19" btw.

[mkoesel]

I can't imagine a better rating than 20/30 for the 6MT since that's what a 335i does. And realistically, I'd guess 10% lower as a best case. So 18/27 maximum.

http://www.fueleconomy.gov/feg/noframes/34048.shtml
http://www.fueleconomy.gov/feg/noframes/34142.shtml

[Powaup]

Originally Posted by filip75

I just stumbled upon the technical data on the BMW.com website ( http://www.bmw.com/com/en/newvehicle...ata/index.html )

Here is what is says for fuel economy (my guess is that the first number is for Manual transmission and the second is for auto):

Urban in L/100km - 12.0 (11.1)
Extra urban in L/100km - 6.9 (6.7)
Combined in L/100km - 8.8 (8.3)

Using a converter ( https://www.google.com/search?q=l%2F...ddress&ie=&oe= ) we come up with the following results:

City in US MPG - 19.6012 (21.1905)
Highway in US MPG - 34.0891 (35.1067)
Combined in US MPG - 26.72 (28.33)

Tank capacity is 60 liters = 15.85 Gal.

So, according to these figures, the combined range on a tank would be 423.42-449.03 miles. At a current US national average for Super Unleaded gas being $3.65/gal - that translates to:

$57.85 / tank - $0.136 - $0.128 / mile

This is phenomenal in my book.

All of that is listed with a disclaimer:

"The figures for fuel consumption and CO2 emissions depend on the wheel and tyre sizes selected.

Further information on the official fuel consumption and on the official specific CO2 emissions of new automobiles can be found in the guidelines on fuel consumption and CO2 emissions of new automobiles which are available free of charge at all retail outlets and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, 73760 Ostfildern, Germany..." (BMW, 2013)

So, these figures are given for 18" tires.

Wow... That's highly impressive to say the least, this car really is the ultimate package

[Suave]

Wow those conversion from official numbers is impressive indeed! As long as we can hit above the magic number of 22.9 MPG and avoid gas Guzzler tax I'm thrilled and everything else above is just country style gravy!

[RealStig]

I'm actually quite excited about the fuel economy. If they are saying 25% improvement over the E92, I'd say that's more like 35% in reality which should bring it to 18-19mpg city/28-29 mpg highway (comparing against the real world numbers of the current model, I usually get 15-16 mpg city/22-23 mpg highway) which is a massive improvement. If you drive 10,000 miles a year, that's about $120-140/month of savings, which is significant. It's almost as if for a lease, the fuel savings can offset the cost of most of the options/packages.

I cannot believe driving an M3 for more than 300 miles with a tank of gas is a reality now

[bmwluvr24]

I am glad you posted this because I have read several posts of people asking about gas guzzler tax. There simply won't be one with an increase in efficiency like this. I do not see a combined fuel rating under 22.5 for this car.

[RealStig]

Originally Posted by phishhead24

I am glad you posted this because I have read several posts of people asking about gas guzzler tax. There simply won't be one with an increase in efficiency like this. I do not see a combined fuel rating under 22.5 for this car.

Yes, that's another big savings, $1,900. That sure did hurt when buying my M3

[SF848]

Still all depends on how you drive though. For a bit i was getting a combined 13-15mpg in my 335iS with mostly city driving. When i drove mostly freeway it was closer to 19.5mpg combined.

I dont think the new cars will be much better (if at all) than the that.

[SF848]

When the turbos are engaged the mpg falls quick

[RealStig]

Originally Posted by SF848

Still all depends on how you drive though. For a bit i was getting a combined 13-15mpg in my 335iS with mostly city driving. When i drove mostly freeway it was closer to 19.5mpg combined.

I dont think the new cars will be much better (if at all) than the that.

That is worse than my M3, how is that possible? Are you sure your tires were inflated properly or you didn't have issues with oil/running rich? I used to own a 335 and I consistently got 19 mpg 50/50 combined.

[SF848]

Originally Posted by RealStig

That is worse than my M3, how is that possible? Are you sure your tires were inflated properly or you didn't have issues with oil/running rich? I used to own a 335 and I consistently got 19 mpg 50/50 combined.

I was driving to downtown LA most the time or up in the mountain roads when i got the really poor mpg. No issues with the car, just a product of traffic and driving in manual mode (DCT) most of the time.

Driving spirited some of the time and relaxed other times got me to around 19.5mpg. But whenever i was going stop light to stop light (or freeway traffic) i got well below that

[TheDeliverator]

The only reason BMW ditched the s65 was the GGT\Fuel Economy. The engine has at least a decade of optimization left and BMW is dropping all the R&D $$ spent to get rid of the GGT.

Be shocking if they didn't meet fuel economy targets with the new M's.

[RealStig]

I wonder if this engine somehow gets a better milage than the 335i.