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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 04-29-2008, 08:05 AM
rverma rverma is offline
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Mein Auto: 1997 528i
Gas Mileage on 528i (e39)??

Hi folks,

With gas prices as high as they are, I was wondering what kind of gas mileage you get? I was looking at the goverment figures on my 97 528:

http://www.fueleconomy.gov/feg/noframes/13433.shtml

They rate it as 17/24 and 19 combined. That seems nuts to me? I get about 22-23 in the city and over 30 on the highway. I've gotten as much as 34 on the highway before. In mixed driving, I get about 24MPG. Typically, the EPA numbers are normally BETTER than what you actually get, not worse.


Is my gas mileage typical of what others out there might be getting? And why are the govt figures so much WORSE than what I'm getting?
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  #2  
Old 04-29-2008, 08:12 AM
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synenergy52 synenergy52 is offline
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On my 97 I get about 26.5 highway. Something must be wrong with my car hah. its an auto. (well thats the first thing wrong with it haha) but yeah maybe i should clean my MAF and change plugs...
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  #3  
Old 04-29-2008, 08:13 AM
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synenergy52 synenergy52 is offline
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And again i'm going by whats being displayed on the gauge cluster.. who knows if thats even accurate? Anybody want to chime in?
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  #4  
Old 04-29-2008, 08:21 AM
rverma rverma is offline
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Mein Auto: 1997 528i
I should have mentioned that I have a 5-speed. So, that's generally gives you 1 or 2 MPG's better than an automatic.
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  #5  
Old 04-29-2008, 09:35 AM
benny2007 benny2007 is offline
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i HAVE A 98 528I WITH AUTO 131000MILES, I JUST CHANGED ALL FILTERS AND PLUGS AND I GET 21.5 IN CITY 25 HIGHWAY OF COURSE THATS A 80MPH NO IF U DRIVE 60 ULL SAVE A LITTLE GAS.
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  #6  
Old 04-29-2008, 09:51 AM
Raymond919 Raymond919 is offline
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Mein Auto: 1997 BMW 528i
'97 528i, 5 sp.
Highway anywhere from 31 to about 32 actual by calculation of fill up vs miles traveled. OBC says as much as steady 34 when cruising on highway. City in mid 20s. I accelerate easy and shift to 5th as quickly as possible.
I use regular fuel always. Dinosaur oil and filter every 5,000 miles.
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  #7  
Old 04-29-2008, 10:12 AM
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  #8  
Old 04-29-2008, 10:15 AM
rverma rverma is offline
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Interesting. It seems as if the 5-speeds get a HECK of a lotter better gas mileage than the automatics.


Quote:
Originally Posted by Raymond919 View Post
'97 528i, 5 sp.
Highway anywhere from 31 to about 32 actual by calculation of fill up vs miles traveled. OBC says as much as steady 34 when cruising on highway. City in mid 20s. I accelerate easy and shift to 5th as quickly as possible.
I use regular fuel always. Dinosaur oil and filter every 5,000 miles.
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  #9  
Old 04-29-2008, 10:29 AM
ProRail ProRail is offline
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Quote:
Originally Posted by rverma View Post
Hi folks,

With gas prices as high as they are, I was wondering what kind of gas mileage you get? I was looking at the goverment figures on my 97 528:

http://www.fueleconomy.gov/feg/noframes/13433.shtml

They rate it as 17/24 and 19 combined. That seems nuts to me? I get about 22-23 in the city and over 30 on the highway. I've gotten as much as 34 on the highway before. In mixed driving, I get about 24MPG. Typically, the EPA numbers are normally BETTER than what you actually get, not worse.


Is my gas mileage typical of what others out there might be getting? And why are the govt figures so much WORSE than what I'm getting?
If you go back to the EPA page you'll see that they revised their method of figuring MPG. The old way was fine, but too many people complained that the figures were too low. The fact is that most people drive like they did when they were kids, constantly accelerating and braking, rather than maintaining the optimum speed for traffic conditions. If you're getting good MPG readings you're probably also getting long life from your brakes and tires. This is just sensible efficient driving. And you don't have to stay at 60 to get good MPGs; I've gotten some of my best (about 35 mpg) on long trips on the Interstate running a little over and under 80 MPH. In local driving I usually get about 23-24. And for those who say that this isn't fun I'll say that you don't have to drive the same way all the time, and that for me driving efficiently is a challenge and is one form of fun for me in my love of driving.
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  #10  
Old 04-29-2008, 04:27 PM
firozu firozu is offline
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i get just about what epa says, wow my car must suck.....
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  #11  
Old 04-29-2008, 04:33 PM
brandon5069 brandon5069 is offline
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Mein Auto: the white one
my 99 528i get's 32-33mpg on long hwy trips and averages 17-19 in the city with me flogging it pretty hard...

edit:
I'm auto
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  #12  
Old 04-29-2008, 04:35 PM
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SikMindz SikMindz is offline
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Mein Auto: 99 CF Grand Am => 03 525i
I average about 21-23 mixed driving and after my last trip over the weekend of about 800 miles I averaged about 27MPG in my 525. CONS1 has never been accurate for me yet- it's about 1.5-2MPG off usually versus me manually figuring it out based on my mileage and how many gallons actually go back into the car.
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  #13  
Old 04-29-2008, 04:49 PM
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Mein Auto: 1997 BMW 528i
I have a 5-speed '97 528i. I used to get 25.5 mpg w/in the city before I installed a CAI which I love listening to so I'm down to 22mpg. I get around 29mpg on the freeway.
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  #14  
Old 04-29-2008, 05:53 PM
wolf888 wolf888 is offline
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on my 98 ( 528i auto ) I get 25 city and 29.5 highway with speed 85 MPH

Last edited by wolf888; 04-29-2008 at 06:46 PM.
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  #15  
Old 04-29-2008, 07:16 PM
gregger59 gregger59 is offline
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Mein Auto: '03 530i; '94 945 Turbo
2003 530i 5-speed. I know it's not a 528, but thought I'd chime in for comparison...

I consistently get 24.5 mpg average of all driving. On road trips I get 30 (with highway speeds of 75-80 mph).
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  #16  
Old 04-29-2008, 07:43 PM
Raymond919 Raymond919 is offline
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I've always heard that high speed consumes more gas than moderate speed. Why is it that I can do 70 to 75 mph and get my good mileage as do other of us while all the gas-saving articles I read say to drive around 50 to 55? What is it about our engines. Is it the vanos?
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  #17  
Old 04-29-2008, 08:13 PM
PutterMcGavin PutterMcGavin is offline
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...you guys do realize that EPA estimates were based on a "highway" speed of 40mph and with the new "revision" highway MPG is measured at 50mph, right?

It is VERY likely that at 40 or 50 mph you're not running in your top gear and don't have the help of that gear and momentum like you do on the highway. It is the same reason why my 540i averaged 30mpg ON THE HIGHWAY before I put in my diff and added some extra "goodies" (2.81 rear drive with 80 running at 2300rpm)

...and for the record it doesn't take a lot of power to keep a car moving at a constant speed. I think I read somewhere that it only required 17HP to keep a Dodge Ram 1500 moving at 70mph on a flat surface.
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  #18  
Old 04-29-2008, 09:01 PM
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I've got a 5 speed. Cruising at about 65 I make 35mpg freeway and about 25 in the city.
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  #19  
Old 04-29-2008, 10:07 PM
wing46man wing46man is offline
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Mein Auto: 99 528i
runnin the auto, i pull 33-34 at 70mph highway obviously, about 23-24 city
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