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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.

Eugen
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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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