2005 3.0i 6-7 City MPG??
 

I reset the Board Computer the other day to refresh the average consumption and after about 20 minutes of city driving i was getting around 6-7 mpg. this is with alot of stop and go (NYC) and it's just very very bad.. anyone driving in nyc getting this bad gas mileage? and i don't rev it high either, try to keep it under 2500 rpm....

Don't trust the OBC, measure mileage by filling up the tank, reset odometer, drive, fill back up at same tank and divide miles over gallons.

It depends how u drive. Im in NYC all my driving is city
And I average 11mpg driving spirited and
About 12.5mpg normal. If I do a highway trip
Its usually 15-16mpg. I done a full tune up
And no change in mpg. The e53 are gas guzzlers.
They are amazing to drive thought.

11.2 winter fuel sux. But I have 4.8, and speed it up usually.

i put 93 over 91 octane as it lasts longer.
And i find the cold weather to have a toll on mpg. seems to be a gas guzler. without warming up the car (idling puts wear on the engine) and tapping the acceleration. very slow keeping it at low rpms.

but when im in a hurry and driving like a F1 driver or the sterotypical BMW owner. I see the gauge go down really fast! like around 30 mile and 1/4 tank is gone!

I cant make my 550i do that bad in full rocket annoy everyone mode, and that thing loves gas. You got something wrong. That is a spectacular engine, My old E39 had it. Around town in traffic was easily 18-20. Highway 29. Vacuum leak, DISA, MAF, and/or pre-cat O2 sensors. Probably make a world of difference.

I'm the opposite. I have a 4.4 and with the cold, seems like my fuel consumption has decreased. :dunno:

I keep track of my mileage by keeping an excel spreadsheet. Here is a snapshot of a few fill-ups, 93 octane, E53 4.8iS, mostly highway miles:

Date ------ mileage -- ppg ------ gal ------ sale --- vendor -- miles driven -- MPG ----- cost per mile
9/25/2012 ----- 75671 -------- $3.929 ---- 21.1 ---------- $82.90 ----- Wawa ------ 357 ----------- 16.91943 -------- $0.23
9/29/2012 ------76003 -------- $3.849 ---- 19.47 -------- $74.94 ----- Wawa ------ 332 -------------17.05187 -------- $0.23
10/4/2012 ----- 76386 -------- $3.819 ---- 22.848 ------- $87.26 ----- Sunoco ---- 383 ------------ 16.76296 -------- $0.23
10/5/2012 ----- 76468 -------- $3.819 ---- 4.393 -------- $16.78 ----- Wawa ------ 82 ------------- 18.66606 -------- $0.20
10/6/2012 ----- 76877--------- $3.819 ------21.947--------$83.82 ------Wawa ------409 -------------18.6358 -------$0.20
10/10/2012 --- 77246 -------- $3.809 ------22.203-------- $84.57 ----- Wawa ------ 369 ----------16.61938 -------$0.23
10/14/2012 ---- 77557 --------$3.809 ------18.36 ---------$69.93------ Wawa --------311 -----------16.939 -------$0.22
10/17/2012 --- 77909 -------- $3.859 ------20.293 --------$78.31 ---- 7-eleven ------ 352 --------17.34588 -------$0.22

At what speeds?

An easier way to track your fueling instead of managing a spreadsheet: Fuelly | Share and Compare Your MPG It won't have all the info you put there such as current mileage on the car and best works if you top it off etc..just an fyi

speed - my wife is driving, and she is the speed demon in the house, so, i would say, it is at least 70+ MPH

Fuelly - I have looked into it, and I am still debating if i want to use it or not...

You may look at replacing your Vanos seals (beisan systems) on that engine and doing the chain rail guides if you plan to keep it. It helps, no joke. Lots of good feedback on the 5'er, 7'er forums.

Ever since I changed the plugs I'm averaging 21 mpg with a 3.0I engine. Mix of city and highway driving. I get close to 24 mpg on the highway.

I ask because I get slightly better mileage than that at a slightly higher MPH. I think I lucked out in my car and got a good mileage performer.

Everything good here. I don't know if my post was misinterpreted but my fuel consumption decrease is a good thing. :)

you got 4.8iS?

there is a "sweet spot" between the speed, and the RPM that yields better gas mileage... not sure what the sweet spot is, but you are probably driving in that spot...

the 4.8is performs better in the MPG department than the 4.6iS did... I guess, due to extra gear in the transmission...

I just bought 6 NGK spark plugs and hoping I'll be getting better gas mileage as well after I change them.

I've been getting around 18-19l/100km (around 12.5mpg). From reading around, that's around the same as the 4.8is.. but mine is only the petite 3.0 :(

Does anybody know if O2 sensors need changing? I'm getting close to 160k KMs.

Wow that mileage stinks for the 3.0,

With my 4.8is, i get around 15ish around the suburbs and stuff, its a mixture of backroads 40+ and very short highway like 1-2 miles then exit etc, i dont drive it grandma either, if i do i can get better probably, highway, granted its usually just me in the car or one passenger, i pulled out around 22mpg on a 70m trip, and that was with some here and there acceleration shots.

It does suck. The MPG I have is city + highway, but I go out at night a lot, so roads are usually empty and I just cruise. (not much stop and go at all). I really hope spark plugs will fix the problem.

Wow, you get better mileage on the 4.8is than my 3.0i.. :banghead: