M Mileage

[Rama]

Okay, I never expected this to be an economy car, but I'm a bit surprised that it's as thristy as it is. I suspect the OBC's mileage calculation is not terribly accurate, but for comparison purposes it should be reasonable. On my former 3.0l, I was getting a pretty steady 9.7l/100 km, but with the M Roadster it's more like 13.5l/100km.

Now considering I'm not thrashing this car nearly as much as I did the 3.0 (that was used, this is new and yes I am observing the break in procedures), I'm a bit surprised at the difference.

Will this get better once the engine gets some miles on it, or is this about what I can expect?

Thanks, Al

[WLH]

While I don't have an "M" those that do have reported that you can expect to see some improvement as you get some miles on past the break-in-period...

[Rick Hunter]

Nah... thirsty? Not any worse than an SUV. I had expected it before purchase. I'm averaging 22-23MPG now (mixed city/hwy, but more hwy), and I'm @ ~8300miles (13,280 km).

If you want to talk thirsty, look at the M5/M6

[sixspeed]

Don't know about the l/km conversion, but I get about 21mpg on average in mine...

[taffy]

I've heard this before, I used to get 25-29mpg out of the M3 so was expecting it to be better if anything due to the lower weight.

[WLH]

but with the M Roadster it's more like 13.5l/100km.

Doing the conversion = about 17.5 MPG US.

[JayD]

but with the M Roadster it's more like 13.5l/100km.

Doing the conversion = about 17.5 MPG US.

If you drive the car properly this should be your average reading or anything less than 20 mpg.

M cars aren't about fuel economy!!

I think I would cry though if I had an E60 M5!

[IDEASEngineer]

my 07MC has been giving me about 16-19mpg

I get about 230-250 miles range

Its not great, if you drive this car like its meant to be driven.

[Rama]

Nah... thirsty? Not any worse than an SUV. I had expected it before purchase. I'm averaging 22-23MPG now (mixed city/hwy, but more hwy), and I'm @ ~8300miles (13,280 km).

If you want to talk thirsty, look at the M5/M6

SUV - you mean Stupid Useless Vehicles?

I had expected it to be worse than the 3.0 as well, but really my question centers on how it might improve with some miles on it. Thanks.

[enfield]

I get better mileage form my Infiniti FX45!! That gives me around 18 miles to the US gallon. I get about 16 miles to the US gallon with the Z4M

[Rama]

but with the M Roadster it's more like 13.5l/100km.

Doing the conversion = about 17.5 MPG US.

M cars aren't about fuel economy!!

Thanks for restating the obvious! LOL! j/k

As I said in the very first line of my post, I knew this was not going to be an economy car. Again, my question was related more to how the mileage would improve over time than the mileage as an absolute number.

Sorry for all the "metrically challenged". "Miles" and "US Gallons" don't mean much to me, just like l/100 km likely don't mean much to you.

Cheers - looks like it should improve with some time. Thanks again.

[enfield]

Well - my mileage has not improved because I drive the car hard!!

[JayD]

Doing the conversion = about 17.5 MPG US.

M cars aren't about fuel economy!!

Thanks for restating the obvious! LOL! j/k

As I said in the very first line of my post, I knew this was not going to be an economy car. Again, my question was related more to how the mileage would improve over time than the mileage as an absolute number.

Sorry for all the "metrically challenged". "Miles" and "US Gallons" don't mean much to me, just like l/100 km likely don't mean much to you.

Cheers - looks like it should improve with some time. Thanks again.

I was having a laugh as well. It should improve as the engine gets some miles on it, mine certainly did until it went bang!!!

[Rama]

Well - my mileage has not improved because I drive the car hard!!

Just what I expect from a Janitor......

[Wondermike]

That's 29mpg down to 21mpg, so probably to be expected TBH.