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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Real world fuel economy for both 330i and M340i?

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      08-04-2019, 11:22 AM   #23
BigWagonFan
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I wanted to have a good overview of fuel economy, so I prepared a summary of all reports I found on this forum. You'll find there original economy as reported by a user + mpg + l/100km versions. Maybe it helps someone

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User            Model                   Original        In mpg          In l/100km      Comment

Carjack         G20 330i RWD            40.7 mpg        40.7 mpg         5
,78 l/100km   "distance about 60 miles return at speeds varying up to 80mph"
ProfoundTwitch  G20 330i RWD            40 mpg          40.0 mpg         5,88 l/100km   "80 miles on highway" "interstate at 75-80" "highway at 60-65"
Lrscpa          G20 330i xDrive         39.7 mpg        39.7 mpg         5,92 l/100km   "EcoPro mode, with cruise on at 75-80mph for 95% of the trip""401mi"
drexplode       G20 330i RWD            39.4 mpg        39.4 mpg         5,97 l/100km   "72.2MPH//717 miles"
sanch8          G20 330i xDrive         6,25 l/100km    37.6 mpg         6,25 l/100km   "120ish in comfort mode"
Beembar51       G20 330i xDrive         37.3 mpg        37.3 mpg         6,31 l/100km   "Most of those miles were done at 80 mph"
klokan          G20 330i RWD            6,50 l/100km    36.2 mpg         6,50 l/100km   "half trip open road, half trip highway, avg speed about 90 km/h"
Lrscpa          G20 330i xDrive         35 mpg          35.0 mpg         6,72 l/100km   "Cruise Control for approx 300 of the 400 miles (last 75 miles was on 2 lane roads)"
opti2k4         G20 330i RWD            8,30 l/100km    28.3 mpg         8,30 l/100km   "highway (...) in comfort mode and speed set at 155km/h"
sanch8          G20 330i xDrive         12 km/l         28.2 mpg         8,33 l/100km
klokan          G20 330i RWD            9
,20 l/100km    25.6 mpg         9,20 l/100km   "average (trip / city / country roads)"
ProfoundTwitch  G20 330i RWD            21.7 mpg        21.7 mpg        10,84 l/100km   "almost exclusively short trips in the city, in stop and go traffic"

PhrogFixer01    G20 M340i xDrive        34 mpg          34.0 mpg         6,92 l/100km   "trip today from MD to OH through the mountains (...) in comfort"
Delta5          G20 M340i RWD           31.4 mpg        31.4 mpg         7,49 l/100km   "90% rural/65-75mph highway and 10% light-traffic city driving"
Wineguy         G20 M340i (?)           26.5 mpg        26.5 mpg         8,88 l/100km   "80% freeway"
insidejoke123   G20 M340i RWD           25.5 mpg        25.5 mpg         9,22 l/100km   "comfort mode with a mix of stop/go traffic and 70mph cruising"
hawk14414       G20 M340i xDrive        25.2 mpg        25.2 mpg         9,33 l/100km   "a mix of highway and in town driving" "very little traffic"
Frank_NJ        G20 M340i xDrive        25 mpg          25.0 mpg         9,41 l/100km   "combined driving and using Sport Plus a lot"
PhrogFixer01    G20 M340i xDrive        25 mpg          25.0 mpg         9,41 l/100km   "stop and go and highway"
BMW_Midlo_Man   G20 M340i xDrive        9,80 l/100km    24.0 mpg         9,80 l/100km   "Comfort"
xraymd          G20 M340i xDrive        23 mpg          23.0 mpg        10,23 l/100km   "Mixed freeway and in town"
ByronWalter     G20 M340i xDrive        22 mpg          22.0 mpg        10,69 l/100km   "mostly urban/suburban driving with moderately light traffic... and 95% of the time in sport"
nola2atx        G20 M340i RWD           18.5 mpg        18.5 mpg        12,81 l/100km   "very spirited driving, mostly in sports plus mode"
BMW_Midlo_Man   G20 M340i xDrive        13,00 l/100km   18.1 mpg        13,00 l/100km   "not actually worried about mpg when rolling in Sport+"
insidejoke123   G20 M340i RWD           18 mpg          18.0 mpg        13,07 l/100km   "sport+ in my small town (...) little traffic but tons of lights"
RPM1123         G20 M340i xDrive        17 mpg          17.0 mpg        13,84 l/100km   "sport+ and roll on the throttle a lot"
PandaMobile     G20 M340i RWD           15.6 mpg        15.6 mpg        15,08 l/100km   "brutal in terms of heavy traffic" "eco pro alot when in traffic" 

Last edited by BigWagonFan; 08-04-2019 at 11:31 AM.. Reason: Fix formatting
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      08-04-2019, 11:59 AM   #24
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37.2 MPG -19' 330i RWD.

This is the first vehicle i have ever owned where i can actually meet and exceed EPA highway estimates in regular commuting.
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      08-05-2019, 11:35 AM   #25
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I travel from LOng beach to West LA 3-4x weekly for work and drive a bit of mix freeway/local the rest of the time and I avg around 26mpg in comfort mode...
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      08-05-2019, 12:01 PM   #26
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On my 330i xDrive I made a 400 mi trip and ended up just shy of 40mpg. This was using EcoPro setting and on cruise at 75-82 for 95% of the trip. The next morning after arriving at my destination I checked my tire pressure (for the first time since taking delivery and was at 39front/43 rear. Label in car says 32/38. So I knocked it down to a more reasonable 35/39, and got around 38MPG for the return.
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      08-05-2019, 11:17 PM   #27
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Quote:
Originally Posted by evo2335 View Post
I travel from LOng beach to West LA 3-4x weekly for work and drive a bit of mix freeway/local the rest of the time and I avg around 26mpg in comfort mode...
Is that for M340i? RWD? xDrive?
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      08-05-2019, 11:31 PM   #28
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14.7-14.9 km/l for cruising speed about 120-140 km/hr.

330i RWD
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      08-06-2019, 04:43 AM   #29
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Quote:
Originally Posted by zapdos191 View Post
14.7-14.9 km/l for cruising speed about 120-140 km/hr.

330i RWD
That's impressive! With my E90 I only get such mileage when cruising 100 kmg and doing minor city driving.
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      08-06-2019, 04:44 AM   #30
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Quote:
Originally Posted by zapdos191 View Post
14.7-14.9 km/l for cruising speed about 120-140 km/hr.

330i RWD
That's impressive! With my E90 I only get such mileage when cruising 100 kmg and doing minor city driving.
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      08-07-2019, 04:53 AM   #31
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Quote:
Originally Posted by BigWagonFan View Post
Quote:
Originally Posted by evo2335 View Post
I travel from LOng beach to West LA 3-4x weekly for work and drive a bit of mix freeway/local the rest of the time and I avg around 26mpg in comfort mode...
Is that for M340i? RWD? xDrive?
RWD
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      08-07-2019, 06:39 PM   #32
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Today's round trip commute. 100 miles in eco pro mode. Speedo set to 85mph. Some stop and go. Used active cruise almost the entire trip. 28.7 mpg. Not too shabby.
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      08-08-2019, 12:47 PM   #33
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Last night's commute home from work-Absolutely unbelievable numbers from a car that is this quick!
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      08-08-2019, 06:12 PM   #34
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Quote:
Originally Posted by hockeymen14 View Post
Today's round trip commute. 100 miles in eco pro mode. Speedo set to 85mph. Some stop and go. Used active cruise almost the entire trip. 28.7 mpg. Not too shabby.
Funny thing about ECO Mode in my F30 is that if I go over 80mph it tells me I'm not saving any miles. Below 80mph it does add miles back. Weird.
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      08-08-2019, 06:59 PM   #35
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I'm at 24.3 right now
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      08-08-2019, 11:35 PM   #36
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I commute in m340 from Thousand Oaks to downtown daily (49 miles) each way. I’ve had my car 7 weeks with 3500 miles on it I’ve averaged 32-35 mpg driving comfort and or Eco mode.
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      08-09-2019, 01:45 PM   #37
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Quote:
Originally Posted by RPM1123 View Post
I was seeing 17mpg around the city in my M340i, although I'm in sport+ and roll on the throttle a lot.
Same here, 17mpg. Driving like a crazy though.
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      08-23-2019, 04:58 PM   #38
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So on my M340i although the display does read 28 mpg...I seriously don't think that is accurate. I am only getting 20 mpg. I start calculating number of miles driven till my next fill and do the math. Nowhere close to what is showing on the display.
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      08-23-2019, 06:18 PM   #39
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I averaged 9.6 on the way home today. Friday driving
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      08-26-2019, 01:09 PM   #40
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I want to share my fuel consumption experience so far with my 330i M-Sport on 18 inch RFT Goodyear tires. At the moment my range is 519km and I have still 57% of fuel to go. This means in theory that I can drive 911km on one tank. Car is mentioning 7.3 l/100km which would give me a total range of 808 km. Current distance is 361 + 519 gives me 880km one one tank. On average it would give me a nice 866km one one tank of 59 liters. Oh yes, this is a mix of a bit of Sport, default comfort and motorway in eco pro. Up until now satisfied with those results.
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Last edited by StevenDS85; 08-27-2019 at 12:54 PM.. Reason: Added picture
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      08-30-2019, 03:08 PM   #41
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Averaging 21mpg on my M340i... My commute to work is very short, not even sure the engine gets warmed up to operating temperature before I arrive, so I can't really get good milage. On the weekends when I take it out for trips, I can average ~32mpg with 70mph driver assist pro engaged. In stop-and-go traffice, mpg drops down to low-20mpg's on the freeway.
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      08-31-2019, 07:19 AM   #42
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Only done about 300 miles so not yet in a position to give a full to empty check, but the computer is saying 39.8 mpg *. Doesn't seem keen to do the full 40. Motoring so far has been purely suburban in comfort drive. Have tried the Eco pro a few times but the free wheeling makes me queazy.
(* That would be 33mpg to those beyond the pond and 7.01 L/100km to those east of the ditch)

Last edited by Bumble; 08-31-2019 at 07:38 AM..
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      10-01-2019, 10:09 AM   #43
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330i with 19" rims.
1200 miles driven and getting average 35.8 mpg. Mostly in comfort mode.
Average speed 24 mph
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      10-01-2019, 02:18 PM   #44
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