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      09-11-2017, 02:28 PM   #683
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After 2500 mi, my rough average is 21 mpg.

On a short roadtrip to Vancouver BC, my short term average was 24 mpg. Mostly flat freeway.

I hung around North Vancouver, where there are a lot of hills including where we were staying. Down to 15 mpg.

A day in the city. 15 - 18 mpg.

A day at the track. 9 mpg.
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      09-14-2017, 08:00 PM   #684
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My M4 is my "economy" car.

It gets much better mileage than my Porsche Cayenne GTS.
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      09-15-2017, 01:22 PM   #685
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I came from a tuned 350Z and I was only getting 17mpg 30% city 70% highway.

With the M4, I've been averaging 21-22mpg easy, mostly driving in Sport / Sport +.
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      09-15-2017, 04:47 PM   #686
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Quote:
Originally Posted by Deteria View Post
I came from a tuned 350Z and I was only getting 17mpg 30% city 70% highway.

With the M4, I've been averaging 21-22mpg easy, mostly driving in Sport / Sport +.
I drove from Lime Rock CT to Lake George, NY today. On the highway stretch I averaged 74 MPH and 30.6 MPG.
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      09-15-2017, 06:54 PM   #687
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This thread is in the wrong section,

It should be in the one I drop my Purse Section
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      09-15-2017, 11:14 PM   #688
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hope I remember to look at my avg mpg in my 435 over 3 years before I bid it farewell tomorrow.
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      09-16-2017, 10:11 PM   #689
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The more I drive it, the more I have to put fuel in it.
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      09-17-2017, 10:31 PM   #690
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Mine is stuck at between 16.9 (if I'm really gunning it and having fun) and 17.3 When I out it in efficient and really shift to baby it.

I'm 6MT , is this type of mpg normal ?!!?
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      09-18-2017, 11:08 PM   #691
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Just did 375 miles in one tank. 91octane all freeway. I had "5 miles" left before filling up.

Mpg seems to better as miles go up
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      09-22-2018, 01:52 PM   #692
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I didnt buy the car for fuel economy, but I am still taken back by how bad it is. My friend who had a '15 M4 was getting 8-9L per 100km ( 26MPG? ) which I thought was good. I bought my '18 M3 CP a few months back and have been steadily getting 14.5-15L per 100km ( 16 MPG? ). I do have the M Perf. exhaust with lots of burbles and crackles in sport plus. Would that really have that much of an effect on the Mileage? Typically driving 30-40% in Sport- Sport plus and 70-60% in efficient.
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      09-22-2018, 05:26 PM   #693
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Bought my car a month ago - F82 - Austin Yellow

First drive in it (apart from a test drive) was a long one: From Bolton in England to Portrush in Northern Ireland. At the end of that trip it averaged 39 MPG. Was super impressed!! Now I'm doing shorter trips and having some fun. Now the average is down to 26.9 MPG and still slowly falling. Hopefully will stop soon!!!

The car has had what I think is called a "muffler deletion". Muffler removed and replaced with straight-through pipes - sounds awesome!! Wondering does that affect performance and/or fuel economy in any way?
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      09-22-2018, 05:30 PM   #694
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Quote:
Originally Posted by RealtorReeceM3 View Post
I didnt buy the car for fuel economy, but I am still taken back by how bad it is. My friend who had a '15 M4 was getting 8-9L per 100km ( 26MPG? ) which I thought was good. I bought my '18 M3 CP a few months back and have been steadily getting 14.5-15L per 100km ( 16 MPG? ). I do have the M Perf. exhaust with lots of burbles and crackles in sport plus. Would that really have that much of an effect on the Mileage? Typically driving 30-40% in Sport- Sport plus and 70-60% in efficient.
16 mpg is pretty normal for city driving with some good acceleration. 26 mpg means that your friend was all highway, most of the time.

I'm at about 19.5 mpg with city and freeway driving split. Also have a 2018 F80 CP.

I'd venture to say you get on the throttle every now and then and your buddy had a featherfoot. Definitely not the exhaust that changes the mileage that much.. it's your foot.
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      09-22-2018, 05:35 PM   #695
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Quote:
Originally Posted by RealtorReeceM3 View Post
I didnt buy the car for fuel economy, but I am still taken back by how bad it is. My friend who had a '15 M4 was getting 8-9L per 100km ( 26MPG? ) which I thought was good. I bought my '18 M3 CP a few months back and have been steadily getting 14.5-15L per 100km ( 16 MPG? ). I do have the M Perf. exhaust with lots of burbles and crackles in sport plus. Would that really have that much of an effect on the Mileage? Typically driving 30-40% in Sport- Sport plus and 70-60% in efficient.
That seems low I would have thought. I think Honest John real mpg puts the F82 at 25.8 Mpg. If you doing really short journeys or driving through congestion a lot though...
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      09-22-2018, 07:27 PM   #696
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Quote:
Originally Posted by RealtorReeceM3 View Post
I didnt buy the car for fuel economy, but I am still taken back by how bad it is. My friend who had a '15 M4 was getting 8-9L per 100km ( 26MPG? ) which I thought was good. I bought my '18 M3 CP a few months back and have been steadily getting 14.5-15L per 100km ( 16 MPG? ). I do have the M Perf. exhaust with lots of burbles and crackles in sport plus. Would that really have that much of an effect on the Mileage? Typically driving 30-40% in Sport- Sport plus and 70-60% in efficient.
Are you driving in a city with heavy stop-and-go traffic?
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      09-23-2018, 08:26 AM   #697
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Drive it like you stole it
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      09-23-2018, 09:42 AM   #698
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20MPG Average. About 16 city and 25 highway. Not too bad for 500hp
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      09-23-2018, 09:45 AM   #699
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So far, average 21 MPG
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      09-23-2018, 11:22 AM   #700
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16mpg average with a heavy foot and virtually no freeway. I think this is actually quite good, matching my 46M exactly under the same conditions. My E90M3 under these conditions was about 12.5mpg.
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      09-23-2018, 11:22 AM   #701
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Just drove 750+ miles fleeing from Hurricane Florence and then returning home (thankfully, no damages). We averaged just under 29 MPG for the trip which included a lot of highway but also some city driving.
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      09-24-2018, 04:15 PM   #702
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21-22mpg on my mixed commute. 7-8mpg on the track wirh one tank of gas per track day.
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      09-24-2018, 04:55 PM   #703
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The fuel economy is doing well. The F80 keeps drinking and I keep buying.
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      09-24-2018, 08:08 PM   #704
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I average around 21mpg. Got about 8.5k miles on the car and am a pretty reserved driver. This is my DD and I plan on making it last for as long as I can
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