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      05-10-2010, 09:39 AM   #1
e.n335
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e9x M3 - a gas guzzler ?

No, clearly.

Even the heavy e93 I have offers excellent results on long, relaxed trips. I got in the last few days 21-23 mpg on the highway, of course cruising style (cruise control active). Shell V-Power 100 octane RON ( 94-95 octane AKI ). This result has been very surprising to me, so I'd like to share with you.

Stomping on the pedal or driving binary will look different, for sure.

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      05-10-2010, 09:55 AM   #2
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I don't think I could get 23 mpg downhill with a tailwind, but I'm really happy someone is. Even on highway trips, actual mileage doesn't seem near that.

BTW - I'm talking about actual, measured MPG. Not the cluster gauge, which I would affectionately call an optimistometer.
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      05-10-2010, 10:45 AM   #3
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My OBC is consistently 0.8-1.0 mpg optimistic. The consistency is nice for calculating range.

I'm averaging a hair under 20 for the life of the vehicle so far, 60 mile round-trip commute and grocery-getter duty.
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      05-10-2010, 10:47 AM   #4
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haha i wish i could get that good
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      05-10-2010, 11:01 AM   #5
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To be honest with you all, I can get cruising at 65mph average a 24-26 mpgs. Of course early in the morning. Just relaxed driving, other than that it does dip below 21mpgs.
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      05-10-2010, 11:22 AM   #6
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ha. my driving is mostly city driving. so i get about 14-16mpg.
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      05-10-2010, 11:48 AM   #7
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I get 20l/100km

300 km on a full tank of GAS, mixed hwy and city. thats pretty awful!
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      05-10-2010, 12:07 PM   #8
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Quote:
Originally Posted by slammedm3 View Post
I get 20l/100km

300 km on a full tank of GAS, mixed hwy and city. thats pretty awful!
I am currently at 13.2L/100km (city+highway), that's after a full track day. I was at 12.8L/100km. still alot better than my Audi S4 (B6), which was at 13.4L/km (mostly highway)
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      05-10-2010, 12:35 PM   #9
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Quote:
Originally Posted by TPE_toy View Post
I am currently at 13.2L/100km (city+highway), that's after a full track day. I was at 12.8L/100km. still alot better than my Audi S4 (B6), which was at 13.4L/km (mostly highway)
there is NO Possible way to run 13l/100km at the track.
Maybe the computer is telling you that, but that is VERY off. I hope you realize that.
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      05-10-2010, 03:54 PM   #10
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Quote:
Originally Posted by slammedm3 View Post
I get 20l/100km

300 km on a full tank of GAS, mixed hwy and city. thats pretty awful!


I'm even worst, over the life of the car so far, I've averaged 22.2 L / 100Km

definitively worth it though!
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      05-10-2010, 04:24 PM   #11
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I got 21.7mpg this past weekend (90% highway)...averaging between 65-75mph. Not bad... Most of the time I average about 16mpg in town though...
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      05-10-2010, 05:16 PM   #12
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Quote:
Originally Posted by slammedm3 View Post
there is NO Possible way to run 13l/100km at the track.
Maybe the computer is telling you that, but that is VERY off. I hope you realize that.
LoL, of course I know that. 13.2L/100km is one day "after" tracking, that's combine with 12.8L/100km. that's 0.4L/100km increase just in one day. It was probably using 40+ Litres / 100km
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      05-10-2010, 07:39 PM   #13
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I hope everyone is not relying on the in car computer to figure average mpg. Those things are almost always optimistic by 1-3 mpg.
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      05-10-2010, 09:39 PM   #14
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i get 18.7-19mpg highway miles in 18inch wheels

and

20.8-22mpg on 19inch wheels...
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      05-10-2010, 10:15 PM   #15
e.n335
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Engine speed plays an important role if you want to get 20+ mpg. Manuals should use the tallest gear possible, DCT's D-Mode. In my test I drove mainly 80 mph @ 3250 rpm ( DCT, 7th gear ) for more than 500 miles. I have been curious about fuel economy. Of course, I need quite some more gas in daily driving reality .
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      05-10-2010, 10:21 PM   #16
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20-22 highway
14-16 city
10-12 havin fun
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