|
|
|
03-16-2015, 09:17 AM | #1 |
Private First Class
20
Rep 116
Posts |
High fuel consumption
Hi, I had my 135i (N55) DCT for about 6 months now.
Ive noticed that fuel consumption, mostly in the city, is extremely high (around 11mpg) and, although I like to accelerate hard sometimes, its not that Im doing it all the time. Previously I had a VW Jetta 1.8T and I had an avg of 17mpg. I did the 2nd service 3 weeks ago and they didnt detect any issue. What do you think may be the problem? Thanks Last edited by elzorro4; 03-16-2015 at 09:23 AM.. |
03-16-2015, 09:31 AM | #5 |
Banned
472
Rep 928
Posts |
That does seem ridiculously low. What year/miles? Any recent service records?
I mean, it is city driving, but even still, 11mpg doesn't sound right, I would figure high teens, maybe low 20's would be average? |
Appreciate
0
|
03-16-2015, 09:33 AM | #6 |
Major General
4338
Rep 6,196
Posts |
Just saying you get 11 MPG is meaningless without any other info.
I could get 0 MPG if I just let the car idle for a full tank. Reset your average speed with each tank. How long are your drives? Do you get the oil up to operating temp each time you drive? Do you let the car idle when you start it? |
Appreciate
1
|
03-16-2015, 10:24 AM | #7 | |
Private First Class
20
Rep 116
Posts |
Quote:
|
|
Appreciate
0
|
03-16-2015, 10:56 AM | #8 |
Major
116
Rep 1,158
Posts |
If your Jetta was getting 17 mpg then I'm sure your 135i is getting around the 11 mpg, especially with it being an auto/DCT. You're barely getting out of 1st gear if you are driving ~15 mph.
Sounds like a lot of stop and go traffic to me. |
Appreciate
0
|
03-16-2015, 11:28 AM | #9 | |
Major General
4338
Rep 6,196
Posts |
Quote:
Reset your avg speed and avg FE every time you fill up. You will see a direct connection between the two. |
|
Appreciate
0
|
03-16-2015, 12:32 PM | #11 |
Private First Class
20
Rep 116
Posts |
|
Appreciate
0
|
03-16-2015, 01:03 PM | #12 | |
Second Lieutenant
65
Rep 275
Posts |
Quote:
http://www.fuelly.com/car/bmw/135i |
|
Appreciate
0
|
03-16-2015, 01:37 PM | #13 | |
Private
8
Rep 80
Posts |
Quote:
|
|
Appreciate
0
|
03-16-2015, 01:55 PM | #14 |
First Lieutenant
40
Rep 393
Posts |
I'm like 90% city in Los Angeles.
Avg speed 21mph Commute to work is 3 miles My mpg ALL city is 17mpg There are weeks I have done nothing but use my car to go to work because I use Uber when I go out on the town to avoid DUI so that is all city driving. 11 sounds low unless you bone out at every stoplight just to sit in traffic 150 ft in front of you for a few minutes. But what do I know lol. Hell my E90 M3 got 11 but at least that is what I was expecting from it. |
Appreciate
0
|
03-16-2015, 05:44 PM | #15 |
Lieutenant
36
Rep 469
Posts |
There's been a lot of threads on this topic. To boil it all down, the "city" driving published mileage is any driving that isn't done on the highway where you go a constant 65 MPH or so without any stopping. Everything else, from bumper to bumper down town traffic stopping and idling at traffic lights through suburban and country cruising back roads at 45 -50 with few stops is city driving. If you've got a lot of the former your mileage is going to suck big time because these cars are tuned for the autobahn, not 5th avenue. I live in Honolulu, commute 6 miles through city and neighborhood traffic with frequent stops and an occasional pop on and off the H1 which cuts through town and get 14 mpg consistently. If I run the car up to the north shore which includes highway and then country back roads that improves dramatically. 11 mpg sounds a little harsh but may be right if your traffic is worse than mine.
__________________
2012 135i M-Sport
|
Appreciate
0
|
03-16-2015, 06:09 PM | #16 |
Second Lieutenant
21
Rep 232
Posts |
Noticed you are in Argentina, what fuel brand do you use? In california, I get the best pickup and mileage with chevron, followed by shell. The rest are real rough in idling and pickups suffers as well. Haven't really compared mileage though, I am around 15 in city and 27 highway (6MT no engine mods).
|
Appreciate
0
|
03-17-2015, 08:45 AM | #17 | |
Private First Class
20
Rep 116
Posts |
Quote:
|
|
Appreciate
0
|
03-17-2015, 08:39 PM | #18 |
Brigadier General
968
Rep 3,323
Posts |
11 is too low. I would think something needs to be checked ... injectors.. plugs..something. That is way too low.
My commute is 80/20 city/highway and the worst I ever had was 14 and there was an injector problem. Maybe use an injector cleaner like Lubro Moly Jectron for a few tank fulls.
__________________
Sparkling Graphite Metallic / 6MT / Terracotta Boston Leather / Sport Package / Comfort Access system / Gray Poplar wood trim / Heated front seats / iPod and USB adapter / HD radio / Premium hi-fi system / OE Tuning / VRSF Intercooler & charge pipe / BMW Performance short shift kit / BMW M Performance Handbrake Handle / BMW Stainless steel pedals / V1 hardwired / rear sun shades Pennsylvania 20 electoral votes
|
Appreciate
0
|
03-17-2015, 09:52 PM | #19 |
Private First Class
21
Rep 105
Posts |
agree - something wrong there. i do 18 miles a day, mostly highway, but I get 17 when I don't push it at every light. I've seen 31mpg on a trip to San Diego (cruise control in 6th gear @ 76mph).
|
Appreciate
0
|
03-18-2015, 12:58 AM | #20 |
OG Tray Deee
82
Rep 261
Posts |
I have 2008 135i and I get around 11-12 MPG as well in the city. It doesn't help that I live in SF with a lot of stop and go traffic and those stupid hills. Meh...what can you do
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|