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Go Back   E46Fanatics > E46 BMW > E46 Xi Forum

E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 02-20-2013, 11:11 AM   #1
beantwn
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Join Date: Feb 2013
Location: boston
Posts: 4
My Ride: 325 xi
Gas prices going up! Who's got the best MPG??

I have a 01 325xi that runs pretty good. Pretty much stock. I put premium and get 28-30mpg hi way. Any frontrunners out there ? What are your mods?

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Old 02-20-2013, 05:22 PM   #2
chilone
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Join Date: Nov 2012
Location: Colorado
Posts: 138
My Ride: 04 330xi, 97 Miata
My bone stock (engine wise) 2004 330xi 6-speed averages almost 26mpg. I drive 70 miles a day going down a mountain pass in the morning and up in the evening. On flat, open road I get closer to 30mpg. I try to drive my 1997 Miata 1.8 5-speed as much as I can for work though 'cause I only have about 44,000 miles on my 330 and don't wanna rack up a buncha miles but it's been a little snowy lately and the Miata is basically worthless in the snow. Oddly, the Miata only averages about 30mpg.

Last edited by chilone; 02-20-2013 at 05:23 PM.
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Old 02-21-2013, 10:07 AM   #3
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 3,265
My Ride: Clubs baby seals
2004 330xi with 6 speed. I get 23ish city/traffic and 30ish highway in the winter on winter gas and snow tires. I get 26ish city/traffic and up to 34-35ish highway on winter gas and summer (all season) tires.
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Old 02-21-2013, 03:36 PM   #4
SilvaBimma
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Join Date: Jul 2003
Location: Raleigh, Cary, Durham, NC
Posts: 577
My Ride: 330Xi
Gotta fix my car, 21-22 70city/30highway. 100 Miles from Charlotte to RDU, only managed 26 MPG.
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Old 02-22-2013, 06:50 AM   #5
miweber929
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Join Date: Nov 2012
Location: Woodbury, MN
Posts: 91
My Ride: 02 330xi
Quote:
Originally Posted by SilvaBimma View Post
Gotta fix my car, 21-22 70city/30highway. 100 Miles from Charlotte to RDU, only managed 26 MPG.
That's what I get as well, far more typical XI mileage than what you'd think so unless you have the 6 speed stick I'd not be too concerned.

I've found MPG threads are usually quite misleading as there is always someone saying the get 5-6 mpg better than typical and there never seems to be a rhyme or reason for it. Not bashing on anyone here but it's usually because people either go by what their car tells them, their circumstances and driving habits are far less typical than they think and say or they use different methods for determining mpg numbers than the typical reset the trip meter every tank and divide the mileage driven by the gallons it takes to fill method.

21-22 city and 26-28 highway are right around the published mpg numbers from BMW and other sources even when the car was new. Not saying there isn't an issue but your about normal for that car. Mine's an 02 automatic with 126k on it; prolly due for pre-car 02 sensors but I don't see that raising mpg by much more than 2 mpg tops.

Last edited by miweber929; 02-22-2013 at 06:54 AM.
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Old 02-22-2013, 11:48 AM   #6
SilvaBimma
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Join Date: Jul 2003
Location: Raleigh, Cary, Durham, NC
Posts: 577
My Ride: 330Xi
I have a failing CCV among other issues, must do air filter/fuel filter one day. Then 02 sensors/spark plugs. I run a 3.46 diff on 5 speed as well.

Weight really kills on these Xi's!
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Old 02-22-2013, 01:14 PM   #7
EDWAGON
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Join Date: Aug 2009
Location: NY
Posts: 274
My Ride: 2004 325xiT
I am curious to know what everyones trip computer average mpg is also , I have had my 325xiT auto for almost 4 years and reset that once maybe 2 years ago , my average from trip compter is 18.4 mpg.
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Old 02-22-2013, 01:16 PM   #8
Ballstowalls
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Join Date: Feb 2012
Location: LA
Posts: 409
My Ride: 05 e46 m3 vert
Average about 200 miles a tank on my m3 .... :/
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Old 02-22-2013, 01:20 PM   #9
Jesse M
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Join Date: Oct 2010
Location: East Greenwich, RI
Posts: 457
My Ride: 05' ZHP
my 05 zhp 6spd manages 27-29mpg highway depending how I drive and if i decide to pussy foot it around. Usually 22-23 cruising around town. Premium 93 shell v-power. 127k miles.
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Old 02-22-2013, 06:34 PM   #10
terdwrassler
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Join Date: Oct 2012
Location: Denver
Posts: 142
My Ride: 2002 330XI
I can get 33-35/hwy all day no problem. My average is only about 17 on the computer though because 90% of my driving is downtown and my intake sounds too good echoing off of buildings to not get above 3 grand sometimes. I also have an electric fan instead of the mechanical, I picked up 1-3 with that on the highway.
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Old 02-23-2013, 02:44 PM   #11
beantwn
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Join Date: Feb 2013
Location: boston
Posts: 4
My Ride: 325 xi
The manual says put in 91 grade but I live in boston and that seems to not exist. I think I'm due for a new fuel filter as there seems to be some rough idling on some of these cold mornings. Hoping that might give me some extra mpg.

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Old 02-23-2013, 02:51 PM   #12
Trondxd
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Join Date: Feb 2013
Location: Norway
Posts: 5
My Ride: 330xd
I average 53 mpg in my 330 xd - tuned with EES software
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Old 02-23-2013, 06:08 PM   #13
sidct
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Join Date: Nov 2007
Location: CT
Posts: 30
My Ride: 2004 330Xi
24mpg combine hwy/city driving with 93 Octane.
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Old 02-23-2013, 08:01 PM   #14
330xigraham
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Join Date: Oct 2012
Location: Connecticut
Posts: 16
My Ride: 2004 330xi
After five months, my trip computer reads 19.5 mpg. (93 octane)

Mostly city driving, with once every other week 100 mile highway tips. In the city, I use the go-pedal in a way that is less than economical.

I noticed a drop from 20 mpg to 19.5 mpg almost immediately after changing the oil to M1 0-40. Not sure what oil was in the car before, but it must have been thinner.
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Old 03-04-2013, 06:51 PM   #15
Arnezie
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Join Date: Aug 2011
Location: Michigan
Posts: 299
My Ride: 04 325XI
Quote:
Originally Posted by Trondxd View Post
I average 53 mpg in my 330 xd - tuned with EES software
WOW
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Old 03-04-2013, 08:31 PM   #16
jmo69
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Join Date: Mar 2013
Location: Wisconsin
Posts: 168
My Ride: 2003 325xi e36 328is
I'm lucky to get 20 mpg city/Hwy.
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Old 03-04-2013, 09:00 PM   #17
peytonracer4
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Join Date: Jan 2010
Location: Valparaiso, IN
Posts: 6,104
My Ride: '00 328i
Quote:
Originally Posted by jmo69 View Post
I'm lucky to get 20 mpg city/Hwy.
That's really really bad.
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Old 03-05-2013, 12:49 AM   #18
White_Knuckles
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Join Date: May 2009
Location: Washington (the state)
Posts: 1,452
My Ride: 2003 325xi
Quote:
Originally Posted by Trondxd View Post
I average 53 mpg in my 330 xd - tuned with EES software
53 mpg is mighty ambitious for these babies. Wait! The XD is a diesel that's totally cheating.

Never mind, you're out. But welcome to our Forum anyway!
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Old 03-05-2013, 04:50 AM   #19
biggy8481
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Join Date: Sep 2010
Location: Takoma Park, MD
Posts: 14
My Ride: 04 330xi
I've been driving my xi a little less lately. Average about 19.5 mpg with daily stints in stop and go traffic (226,000 miles auto). Kinda sad to me that the E39 M5 I just picked up gets better mileage (average about 25 mpg so far)

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Last edited by biggy8481; 03-05-2013 at 04:51 AM.
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Old 03-05-2013, 04:03 PM   #20
athayer187
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Join Date: Mar 2008
Location: Vernon, CT
Posts: 155
My Ride: 2004 330xi
I get 27-28 mpg with a 100 mile round trip commute (all highway) in my 330xi.
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urethane trans mounts, 500/450 IE Coilovers, UUC SSK, Mason Engineering strut bars,
Hella H1/H4 headlights, Schroth Rallye 3's, Dinan 25/19 swaybars, 750i brakes
2004 330xi - stock except for UUC SSK, RE RSM's, Koni Yellows, UUC TSE1
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