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BMW 3-Series Real World MPG

74 messages,  Last post on Nov 16, 2008 at 8:48 AM

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What is this discussion about? BMW 3 Series, Fuel Efficiency (MPG), Sedan

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#66 of 74 Re: MPG Feature in On Board Computer [hpowders] by davidd3 Mar 25, 2008 (12:50 pm)
I check mpg by hand too, on a regular basis. I was just wondering how accurate the readings from the car are. It seems that your experience has been the same as mine in that the readings from the car are a bit optimisitic.   You certainly are getting good gas mileage for a V8. I think that BMWs have remarkable fuel efficiency for such powerful engines. I'm getting 24.5mpg overall from my 330i; that's roughly 60% highway, 40% local. I came out of a G35, which got about 22mpg with the same driving. Replies to this message: hpowders (Mar 25, 2008 12:58 pm)
#67 of 74 Re: MPG Feature in On Board Computer [davidd3] by hpowders Mar 25, 2008 (12:58 pm)
Replying to: davidd3 (Mar 25, 2008 12:50 pm) Sorry, but I deleted my post due to the fact this is a 3 Series mpg forum, not about the 5 Series!   As I said before, I found the same thing as you with my 545i. The car's readout was always a bit too optimistic. After I found that out, I started keeping the mpg stats. by hand. I keep a pocket calculator in the glove compartment for that purpose. After the first year, I became less enthusiastic about "keeping score". From the chart I kept by hand, I averaged about 21 mpg over 9000 miles with 70% highway, 30% local errands. Pretty impressive for a powerful V-8, IMO. I'm sure the mpg would have been closer to 21.5 or so, using the car's readout.   I guess BMW wants us to believe our mpg is better than it really is so we keep coming back for new BMW's!
#68 of 74 2006 325i 6spd manual ZSP, 20K miles by nkeen Mar 26, 2008 (2:21 am)
Mine is indicating 27.3 mpg over the past several thousand miles, about 60/40 highway/urban with the occasional 150 mile trip.
#69 of 74 2006 325xi auto, 46K miles by kirkr Mar 26, 2008 (4:28 am)
On board computer has calculated 28.3 to 28.5 over 46,000 miles 90/10 highway/urban. I commute 90 miles round trip daily. Manual calculation thru the first 20K was 27.9 to 28.3.   Regards, Kirk
#70 of 74 Florida to MI by erik10 Apr 03, 2008 (4:35 pm)
Our 2006 325i Convertible with automatic transmission got 29.4mpg from Sarasota to mid-MI a few weeks ago. A 2 day trip running 70-80 mph most of the way fairly frequent food and rest stops.
#71 of 74 Very Happy by davidd3 Apr 03, 2008 (6:56 pm)
2006 330i A/T. 33.1mpg according to on-board computer for round-trip of 250 miles, almost all highway mostly 70mph.
#72 of 74 Good MPG from a 2002 325i manual by gtom71 Jun 05, 2008 (7:13 pm)
I've had my 325i and it has about 55k miles on it. Just recently drove from NYC to Boston. I got 28-30mpg on both legs of the trip w/ A/C use and a fully packed car. 2 kids/ 2 adults and luggage. I averaged probably around 75 touching 90 occasionally.   Usually I get 22-25 in the city driving between NJ, NYC and Long Island and Hwy around 27-30 depending on how spirited I drive. I've seen the computer hit 34mpg on a fresh tank and right onto the hwy, but only going about 60 on the flats. Usually can't stay like that for long.   Looking to get a 3 series convert, after I trade in the sedan for a minivan.
#73 of 74 BMW E46 Real World Mileage listings - please add by nopcbs Jun 14, 2008 (5:24 am)
2003 330i zhp 6-speed   Suburbanish-city driving: 19 mpg   Highway 65 mph on cruise: 34-35 mpg   Both on premium; regular does not seem to make much difference.   The city number is a little disappointing as my wife's RX330 does 17-18 mpg and it is a big lump.   Sure hope they start doing hybrids or importing manual shift diesels.
#74 of 74 '07 328i: Impossible highway numbers? by dmaccioc Nov 16, 2008 (8:48 am)
I have an '07 328i, auto, non-Sport. I live in the SF Bay Area and usually sit in a bunch of traffic, so I normally only average about 21-22mpg.   When my parents were visiting in September, they took my car down toward LA for an overnight stay. They got 36.8mpg on the way down!!! I did the math, and it's true. My dad said they filled up, got directly on the highway, set cruise at 70, and didn't hit any traffic. On the way back, they got 32mpg - I think partially because my mom drove for an hour and she didn't use cruise control.   Last week I had to go up to Sacramento for work (105 miles each way) and averaged 33mpg, setting cruise at 75 at some points. Very happy with the fuel economy!   Is there any particular reason why my car gets such good numbers?

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