Crazy fuel consumption

synclastica_86 · 08-27-2009, 02:15 PM

I'm having questions regarding my fuel consumption. I recently move back to Hong Kong (for a semester) and had to use my E93 323i. Since the engine is much smaller than my E92 M3, I'd expect my fuel consumption to be way lower, but I was shocked when the gauge read 18.4 l/100km = 12.78mpg!!!!!!!! I took it to the dealer.... they said nothing was wrong with the car. Remembering the top gear episode in which they show an M3 being more fuel efficient than a Prius depending on the driving style, I tried to drive the car as soft as I could. The fuel consumption still won't budge. My commute also mainly consist of highways (so it's not like I am constantly stuck in stop-go traffic). Wtf is going on?

solefald · 08-27-2009, 02:24 PM

i get 16-17-18mpg on my E92 328i around town, but as far as i know E93 is 400lb's heavier, so more fuel consumption.

synclastica_86 · 08-27-2009, 03:44 PM

Quote:

Originally Posted by solefald

i get 16-17-18mpg on my E92 328i around town, but as far as i know E93 is 400lb's heavier, so more fuel consumption.

But I'm doing 12mpg.... and it's 323 not 328. And I'm mostly doing highways. Top up or top down don't make much difference... I tried.

lauer87 · 08-27-2009, 03:54 PM

Are you reseting the trip computer?

MCMLXXXIX · 08-27-2009, 04:05 PM

Quote:

Originally Posted by synclastica_86

But I'm doing 12mpg.... and it's 323 not 328. And I'm mostly doing highways. Top up or top down don't make much difference... I tried.

where do you get a 323 in the states?

Bimmer Nerd · 08-27-2009, 04:08 PM

Quote:

Originally Posted by MCMLXXXIX

where do you get a 323 in the states?

+1

lauer87 · 08-27-2009, 05:32 PM

Read the OP's original post, he says its back home in Hong Kong...

MCMLXXXIX · 08-27-2009, 05:48 PM

oh pff i need to start paying attention to those

E90SLAM · 08-27-2009, 06:30 PM

are you reading the "overall fuel consumption" gauge? which will record the entire fuel consumption until you reset. reset the gauge and drive careful...the readout should improve dramatically...

nnnnnnnnnnnnnnnnnnnnnn · 08-27-2009, 06:31 PM

The only thing I can think of is that the 323 engine is working harder to move all that weight, thus burning more fuel.

synclastica_86 · 08-28-2009, 05:04 AM

Quote:

Originally Posted by lauer87

Are you reseting the trip computer?

Quote:

Originally Posted by E90SLAM

are you reading the "overall fuel consumption" gauge? which will record the entire fuel consumption until you reset. reset the gauge and drive careful...the readout should improve dramatically...

The figure was after I reset. I was only getting 10.22mpg.

ACZakka325i · 08-28-2009, 09:47 AM

I get less than 10mpg around town. Usually rip it from stop at least to 5k rpm.

Seriously considering a forced induction car when my lease it up. I fill up 1.5 times a week. UGH.

synclastica_86 · 08-28-2009, 10:07 AM

Quote:

Originally Posted by ACZakka325i

I get less than 10mpg around town. Usually rip it from stop at least to 5k rpm.

Seriously considering a forced induction car when my lease it up. I fill up 1.5 times a week. UGH.

Yeh......but u are driving an M3. I get 14mpg in my M3 (spirited driving included).... but I'm talking abt a 2.3L engine here... not 4.0 a high revving V8.

Hawkeye · 08-28-2009, 02:30 PM

Is someone syphoning your gas? haha. (yes I know that wouldn't affect your trip guage but it was all I could think of)

aut0sh0cker · 08-28-2009, 03:01 PM

you have a heavy foot

Year's_End · 08-28-2009, 03:20 PM

Quote:

Originally Posted by ferrari355fi

The only thing I can think of is that the 323 engine is working harder to move all that weight, thus burning more fuel.

This is the most likely reasoning I can think of as well. Stick an underpowered engine in a relatively heavy car and you end up with a mill that gets worked too hard.

Quote:

Originally Posted by aut0sh0cker

you have a heavy foot

He says he drives it as soft as he can.

aut0sh0cker · 08-28-2009, 03:24 PM

Quote:

Originally Posted by Bimmer Loyalist

This is the most likely reasoning I can think of as well. Stick an underpowered engine in a relatively heavy car and you end up with a mill that gets worked too hard.

He says he drives it as soft as he can.

that is relative. I can shoot you in the face "as softly as I can" but its gonna blow off your head nonetheless.

evoi19 · 08-28-2009, 03:29 PM

Quote:

Originally Posted by aut0sh0cker

that is relative. I can shoot you in the face "as softly as I can" but its gonna blow off your head nonetheless.

LOL

Year's_End · 08-28-2009, 05:29 PM

Quote:

Originally Posted by aut0sh0cker

that is relative. I can shoot you in the face "as softly as I can" but its gonna blow off your head nonetheless.

Yeah, but then you involve common sense and the relative details provided in the OP.

Aija · 08-28-2009, 07:41 PM

Quote:

Originally Posted by aut0sh0cker

that is relative. I can shoot you in the face "as softly as I can" but its gonna blow off your head nonetheless.

pervert

328i · 08-28-2009, 08:39 PM

The e93 is heavy, and the 323i motor isn't very powerful, this combination will lead to using lots of gas. Im sure the mpg youre looking at is an average, so reset it and then see how it is.

Off topic but your S550 is the W221 not the W220, that was the previous body style. Nice stable of cars.

pmeloche · 08-28-2009, 10:41 PM

I had a 2009 E90 323i loaner for a day and I got 6L/100km (39.5 mpg) on highways. I don't think the heavier E93 will account for the difference in fuel consumption. Something is wrong with either the car or your driving habits.

08-27-2009, 02:15 PM	#1
synclastica_86 Captain 242 Rep 735 Posts Drives: F32 435i, E92 M3, S550 Join Date: Aug 2008 Location: Hong Kong iTrader: (0) Garage List 2013 BMW F32 435iA [0.00] 2009 BMW E92 M3 [0.00] 2008 Mercedes S550 ... [0.00]	Crazy fuel consumption I'm having questions regarding my fuel consumption. I recently move back to Hong Kong (for a semester) and had to use my E93 323i. Since the engine is much smaller than my E92 M3, I'd expect my fuel consumption to be way lower, but I was shocked when the gauge read 18.4 l/100km = 12.78mpg!!!!!!!! I took it to the dealer.... they said nothing was wrong with the car. Remembering the top gear episode in which they show an M3 being more fuel efficient than a Prius depending on the driving style, I tried to drive the car as soft as I could. The fuel consumption still won't budge. My commute also mainly consist of highways (so it's not like I am constantly stuck in stop-go traffic). Wtf is going on? __________________ Current: BMW F32 435iA M-Sports; BMW E92 M3, M-DCT; Mercedes W221 S550 4matic; Ford Fiesta ST; Nissan Silvia S15 Spec-R Retired: BMW E93 323iA; BMW E85 Z4 3.0i, SMG; Lexus IS 250 AWD; Lexus GX 470; Mercedes W203 C230 Sportscoupe; Peugeot 206 S16; Peugeot 206 RC
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08-27-2009, 02:24 PM	#2
solefald Nigerian Prince 385 Rep 2,180 Posts Drives: '11 F25 Join Date: Apr 2008 Location: San Diego, CA iTrader: (2) Garage List '11 BMW F25 [0.00]	i get 16-17-18mpg on my E92 328i around town, but as far as i know E93 is 400lb's heavier, so more fuel consumption. __________________ http://soundcloud.com/djtchort
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08-27-2009, 03:54 PM	#4
lauer87 Lieutenant 8 Rep 586 Posts Drives: 335xi Join Date: Sep 2007 Location: USA iTrader: (0)	Are you reseting the trip computer?
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08-27-2009, 05:32 PM	#7
lauer87 Lieutenant 8 Rep 586 Posts Drives: 335xi Join Date: Sep 2007 Location: USA iTrader: (0)	Read the OP's original post, he says its back home in Hong Kong...
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08-27-2009, 05:48 PM	#8
MCMLXXXIX wat 238 Rep 3,406 Posts Drives: a gr3at whit3 5hark Join Date: Oct 2008 Location: Oct 2008 iTrader: (0)	oh pff i need to start paying attention to those __________________ 2012 Toyota Highlander SE - PAST - 2008 e92 335i, 2006 e90 325i
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08-27-2009, 06:30 PM	#9
E90SLAM Supreme Allied Commander 1963 Rep 61,781 Posts Drives: A BBS WHORE Join Date: Jul 2007 Location: . iTrader: (6) Garage List 2022 BMW X3 sDrive30i [0.00]	are you reading the "overall fuel consumption" gauge? which will record the entire fuel consumption until you reset. reset the gauge and drive careful...the readout should improve dramatically... __________________
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08-27-2009, 06:31 PM	#10
nnnnnnnnnnnnnnnnnnnnnn Lieutenant 108 Rep 465 Posts Drives: 1 Join Date: Jan 2008 Location: 2 iTrader: (0)	The only thing I can think of is that the 323 engine is working harder to move all that weight, thus burning more fuel.
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08-28-2009, 09:47 AM	#12
ACZakka325i Colonel 278 Rep 2,008 Posts Drives: 2 stroke Join Date: Jul 2005 Location: CT iTrader: (2)	I get less than 10mpg around town. Usually rip it from stop at least to 5k rpm. Seriously considering a forced induction car when my lease it up. I fill up 1.5 times a week. UGH. __________________ (Waitlist): #1 M2CSL (Current): 2016 F15 X5 3.5xdrive - 2010 997.2 C4S Coupe (Past): 2016 F30 340xi M-Sport -2013 535i xdrive 2008 E92 M3 - 2006 E90 325i 2002 E46 325xi - 1991 E30 325i
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08-28-2009, 02:30 PM	#14
Hawkeye Brigadier General 2070 Rep 4,365 Posts Drives: '07 Z4 Coupe, '21 X3, '16 GMC Join Date: Aug 2007 Location: Iowa iTrader: (0) Garage List 2016 GMC Sierra SLT [10.00] 2008 Yamaha R6 [9.00]	Is someone syphoning your gas? haha. (yes I know that wouldn't affect your trip guage but it was all I could think of) __________________ 2007 Z4 3.0si Coupe • 6 MT • Black Saphire Metallic • PP • SP 2016 GMC Sierra SLT Z71 Premium Plus 4x4 2017 Harley StreetGlide • Denim Black • V&H Tune 2021 BMW x30i • Phytonic Blue Metallic • Fully loaded
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08-28-2009, 03:01 PM	#15
aut0sh0cker meh 123 Rep 1,756 Posts Drives: E92 335i, 997.2 C4S Join Date: Jan 2008 Location: 91362 iTrader: (2)	you have a heavy foot
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08-28-2009, 08:39 PM	#21
328i Colonel 148 Rep 2,932 Posts Drives: E46 ///M Join Date: Jan 2007 Location: central NJ iTrader: (15)	The e93 is heavy, and the 323i motor isn't very powerful, this combination will lead to using lots of gas. Im sure the mpg youre looking at is an average, so reset it and then see how it is. Off topic but your S550 is the W221 not the W220, that was the previous body style. Nice stable of cars. __________________
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08-28-2009, 10:41 PM	#22
pmeloche Lieutenant Colonel 24 Rep 1,604 Posts Drives: 2013 F25 X3 xDrive35i Join Date: Feb 2008 Location: Montréal, Canada iTrader: (0)	I had a 2009 E90 323i loaner for a day and I got 6L/100km (39.5 mpg) on highways. I don't think the heavier E93 will account for the difference in fuel consumption. Something is wrong with either the car or your driving habits. __________________ Patrice 2013 F25 X3 xDrive35i Vermillion Red
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