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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 08-10-2015, 04:23 AM   #1
ItsZaY
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Join Date: May 2015
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My Ride: 2002 BMW 330Ci Coupe
Non-M3s What's your Avrg MPG?!

I've been running my 2002 330Ci Sports Package with some nice mpg.... My average has been 25-27 mpg mostly highway. Doing testing with my new exhaust...

Last edited by ItsZaY; 08-10-2015 at 09:00 AM.
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Old 08-10-2015, 04:46 AM   #2
jfoj
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Not sure this is a subject/topic that another thread should be opened up to discuss.

There will be a WIDE variety of answers and the problem is people RARELY discuss or post their AVERAGE, which in my opinion should be over 10 fill ups. Too often the only information people post is the best figure they ever achieved. Even then, there are FAR too many variables and people rarely properly QUALIFY their answers.

The problem is you will see people claiming things like 35 MPG and this is just not realistic and then other owners start trying to figure out why they do no see these numbers on their cars and IMMEDIATELY think something is wrong with their car. Come on we are all dealing with 10-17 year old cars with typically over 100k miles now, you need to be careful about expectations.

Also keep in mind that after about 65 MPH cruising speeds the mileage will start to fall off on almost any car, so in todays age with the higher speed limits and the average speeds on many highways just keeping up with traffic you are not likely going to see optimal MPG valves.

With city driving, which IMHO is ANYTHING other than steady highway driving, while the car is sitting at a traffic light idling, any vehicle other than a hybrid or a newer car that shuts the engine off will get exactly 0 MPG and this will average in and kill any hopes of high MPG returns.

Just search my user name and you will find my comments about the subject.

Careful what you listen to and what your expectations may be. Also do not solely rely on the OBC displayed figures, they are a good point of reference, but not often very accurate.

My $0.02.
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Old 08-10-2015, 09:00 AM   #3
ItsZaY
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Hey, thanks for the response... I never thought about the things you listed such as people posting highest mpgs acquired. I just wanted to get a ball park of how these 10-12 year old cars are holding up to the new mpg ratings. Obviously some people drive way more aggressive than others which also affects mpgs averages.
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Old 08-10-2015, 09:08 AM   #4
metallikatz3
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I'm averaging 14.8 in my non-M3. Please keep in mind that this non-M3 has a 5.7L V8 with a supercharger and weighs 6,000 lbs.

But on my non-M3 that is also made by BMW I just averaged 27.8 mpg on a 1100 mile highway trip with the cruise control set at 90mph for almost the whole trip. Mixed (75% city/25% highway driving) averages 24 mpg

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Old 08-10-2015, 09:17 AM   #5
venerated
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I get about 24mpg. I went to this car from another gas loving car, so it feels normal to me. The only thing that I'm still getting used to is it being almost twice as much to fill up due to using premium gas, but that's life with a BMW.
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Old 08-10-2015, 09:19 AM   #6
erickonphoenix
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I don't know how reliable the live mileage calculator is on the e46. However, on my round trip Houston to Dallas this weekend it was registering 25 mpg at 90 mph.

I didn't get all the way to Dallas and back to Houston on a single tank but I got close. I stopped at about the 350 mile mark but the amber low fuel light had just clicked on.
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Old 08-10-2015, 09:27 AM   #7
rsyed07
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This topic has been discussed before. With my 330i I can get a constant 30mpg if going 75mph and I'm the only passenger wit no a/c on in the highway. Keep in mind this is FL with flat roads and my car is maintained properly with new filters, plugs, etc. But in the real world scenario with city and highway driving mixed with stop and go bottlenecks on the highway 5 days a week I am averaging 21 to 23 mpg. On my drive up and down the east coast I've gotten 430 miles to a tank with a gallon and a half to spare.
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Old 08-10-2015, 09:40 AM   #8
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I used to average 19.9, but now I'm down to 19.1 due to so much AC usage in the summer. Nearly all city.



Quote:
Originally Posted by rsyed07 View Post
This topic has been discussed before. With my 330i I can get a constant 30mpg if going 75mph and I'm the only passenger wit no a/c on in the highway. Keep in mind this is FL with flat roads and my car is maintained properly with new filters, plugs, etc. But in the real world scenario with city and highway driving mixed with stop and go bottlenecks on the highway 5 days a week I am averaging 21 to 23 mpg. On my drive up and down the east coast I've gotten 430 miles to a tank with a gallon and a half to spare.
I keep seeing your sig and wondering...is that the WAWA on 17-92 in the background? looks so familiar lol
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Old 08-10-2015, 09:42 AM   #9
rsyed07
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^Yea lol, right in front of the hospital. I need to get a new siggy pic this ones old.
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Old 08-10-2015, 10:15 AM   #10
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Quote:
Originally Posted by jfoj View Post
There will be a WIDE variety of answers and the problem is people RARELY discuss or post their AVERAGE, which in my opinion should be over 10 fill ups
A better place to get data for this question is one of the many web sites where people submit their mpg data. I don't remember any offhand but a Google search will get you plenty. That said, my average over 200k+ miles is 23.85. The optimistic mileage calculator in the car reports 25.1, but I know that is wrong.
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Old 08-10-2015, 10:26 AM   #11
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Quote:
Originally Posted by jmb View Post
A better place to get data for this question is one of the many web sites where people submit their mpg data. I don't remember any offhand but a Google search will get you plenty. That said, my average over 200k+ miles is 23.85. The optimistic mileage calculator in the car reports 25.1, but I know that is wrong.
Finally a voice of reason!!!

I run up and down the East Coast and down to the Gulf Coast. Between traffic, hills, mountains and other in town stops on a long trip, there is very little chance for me to actually get out and drive non stop with cruise control on.

Even people claiming 30 MPG on an E46, this is pretty much under ideal conditions and maybe even with a 6 speed transmission, I am still not quite buying this as a valid number, I would want to see this happen first hand before I am convinced a 10+ year old car with over 100k can pull these kinds of numbers over 60-65 MPH. These are also not "averages", these are possible obtained mileage for 1 or maybe 2 tanks of fuel depending on the trip.

I am getting ready to take a 2400 mile trip in my E70 4.8l X5. I can get close to 25 MPG, but I won't. I will be pushing it and this will be with 1 additional passenger and pretty much the rest of the back filled with luggage and cargo. I expect 23 MPG is about what I can get with the lead foot and the terrain that I will be driving through.
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Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

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Old 08-10-2015, 10:50 AM   #12
TRITONAL
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0% hwy / 100% city - 19mpg
30% hwy / 70% city - 21mpg
70% hwy / 30% city - 23.5 mpg
100% hwy / 0% city - 27 mpg

These are all calculated averages I've seen. I keep track of both calculated and the OBC, in which the OBC is off by ~1-3% in most cases. My lifetime average is 22.1 mpg.

Here's my Fuelly account, where I keep track of OBC in the notes, and the actual is listed. Fuelly is a good site to see averages of lots of cars over hundreds of thousands of miles.
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Old 08-10-2015, 11:09 AM   #13
trizzuth
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24.5mpg combined. That's about 60/40 highway/city driving, and driving the way I want 100% of the time, which involves me mashing my foot to the floor quite often. 01 330i Manual Tranny, intake, exhaust, underdrive pulleys. 18" square setup.
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Old 08-10-2015, 12:02 PM   #14
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'99 328i Manual with 255K.

I reset my trip odo when I fill up, and typically get 375 miles and add 15.5 gallons, which is about 24mpg.
I'm probably about 70/30 highway/city, and I cruise at 80+ when on the highway.
A/C is almost always on.

As noted, don't trust the real time fuel MPG gauge or the OBC value - they can't be relied on for accurate data..
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Old 08-10-2015, 12:05 PM   #15
lmr2wil
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I'll play: 40,081.3 miles driven since I got the car. 1,544.113 gallons purchased (on 105 fill-ups). This works out to be 25.957 MPG over my ownership.

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Old 08-10-2015, 12:10 PM   #16
Dave1027
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Quote:
Originally Posted by lmr2wil View Post
I'll play: 40,081.3 miles driven since I got the car. 1,544.113 gallons purchased (on 105 fill-ups). This works out to be 25.957 MPG over my ownership.

Luke
That's good data.

I'm averaging 24.7 mpg on 50/50 hwy/city driving.
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Old 08-10-2015, 12:11 PM   #17
Mario0617
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My Ride: 2003 325i
My Car: 2003 325i Auto w/ 110k miles.
Driving in: Florida
Cruising speed on highway: 75-80

I get around 28 MPG highway. Meaning if I fill up, get on the highway, drive a few hours, get off, fill up again, and calculate by hand, I get within .5 MPG of 28 every time. In the city, I get around 20. City is obviously more difficult to be precise on. Average mix for my commute and habits is 23-25 MPG.
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Old 08-10-2015, 01:01 PM   #18
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You guys are lucky... I'm lucky to get 13 mpg (mostly city driving). When I go on the highway, maybe high 20s. 330 5mt
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Old 08-10-2015, 01:36 PM   #19
pauly99
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About 90% of my driving is in the suburbs with a 12.5 mile commute to work each way which averages about 28 mph. Having said that, between the few times I am on the highway combined with all the city driving I average 23.1 mpg.
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Old 08-10-2015, 01:59 PM   #20
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