05-05-2023, 11:57 PM | #24 |
Registered
0
Rep 2
Posts
Drives: ‘16 M235ix
Join Date: Aug 2021
Location: East Orange,NJ
|
i have a ‘m235i xdrive DCT with 90k miles that recently is showing much worse mpg (before 32/23, now 20/15). There are no fault codes present based on both the dealer and bimmerlink diagnostics. i’ve ran a can of 44k, changed the spark plugs and had the dealer perform fuel injector service whatever that is (i probably wasted my money). I think the worse mpg is due to bad o2 sensors but wouldn’t that throw a code or trip a engine light? It is performing fine, except for the lower mpg. Appreciate any feedback. Thank you.
|
Appreciate
0
|
05-06-2023, 05:41 AM | #25 |
Major
598
Rep 1,237
Posts
Drives: 2015 M235ix
Join Date: May 2015
Location: United States
|
My 2015 235 has averaged a bit over 19 mpg over its lifetime of mostly suburban driving. That number has remained quite constant throughout. AFAIK, there is nothing wrong with it. For what it's worth, our 2016 X3 with the 4-cylinder has averaged about 22 over its lifetime, with a bit more highway driving.
|
Appreciate
0
|
05-06-2023, 12:32 PM | #26 |
Private
48
Rep 75
Posts |
I’m such a fan of the B58, it really feels like the perfect all rounder.
If I run it hard I get between 16 and 20 Around town I get between 28 and 32 On the motorway to work and back I average 41 on eco Could do a lot worse really! |
Appreciate
0
|
05-06-2023, 12:51 PM | #27 |
Brigadier General
4818
Rep 3,611
Posts |
My M240i's MPGs at 19,949 miles:
These are the result generally of highway miles, followed by backroads and then some in-town driving (mostly to get out of town! )
__________________
2017 M240i: 25.9K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; Full PPF |
Appreciate
1
WolfGTI737.00 |
12-20-2023, 03:24 PM | #29 |
Private
35
Rep 99
Posts |
fuel economy better with auto
I have a 2018 230i with MT, and just rear wheel drive. I get ~25 mpg when driving in urban traffic with stop light, etc. I measured close to 32 on interstate @ a constant 70-75 mph.
My wife has a 2021 330i with automatic transmission and 4 wheel drive, and it gets better mileage than my 230i. On interstate at the same 70-75 mph, we measured 34.5 mpg. I think it's primarily to the lower RPM's for the same speed with the auto transmission.
__________________
__________________________________________
'18 m230i, Mineral Grey, MT, M-sport, Track Handling, Premium, H-K audio, CarPlay, no Moonroof, '21 m330ix, Mineral Gray, Navi, Driver Assist, Park Assist, 19' orbit grey wheels (wife's car) |
Appreciate
0
|
12-20-2023, 08:25 PM | #30 |
Brigadier General
4818
Rep 3,611
Posts |
Returning from a road trip, I got 36.3 mpg on the final, 245-mile leg. I was driving the speed limit on highways with limits of 55-65 mph.
After 23.6K, I'm at 28.9 mpg since new.
__________________
2017 M240i: 25.9K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; Full PPF |
Appreciate
1
WolfGTI737.00 |
12-21-2023, 09:42 AM | #31 |
Lieutenant Colonel
3467
Rep 1,960
Posts |
Kicking around town mostly with country roads. Less than 1/4 highway. My "global" avg is around 9.7L/100km or 24mpg. Which isn't great but slightly better than my previous N52 powered E90. City driving and winter driving don't do well for fuel economy... neither does the occasional redline
I think the kombi stats like mpg and certain other settings can reset on battery power loss, like the clock. So it may not be since new. |
Appreciate
0
|
12-22-2023, 01:18 PM | #32 |
Private First Class
77
Rep 144
Posts |
I'm assuming you're all stock to be hitting high 20s.
I get 20.0 average MPG on the dot with 50/50 city and highway driving. Might be closer to 27 if 100% highway only and on Eco but I've yet to drive that much. Might be heavy on the gas for a quick 1-2 sec. max to pass someone but no other hard driving. TU HPFP, MHD stage 2 on 91 octane map, xHP stage 3. MPG drops even lower as expected when sometimes mixing 91 with just 2 gallons of E85. |
Appreciate
0
|
12-22-2023, 03:25 PM | #33 |
Private
29
Rep 62
Posts
Drives: 2019 G20 330xi, 2015 F22 M235i
Join Date: Aug 2014
Location: Rockville, MD, USA
|
Have you calibrated the 'miles' portion of MPG?
On my car the speedo (and by implication the odo) reads about 5% faster than GPS calculation. That's handy for avoiding tickets if you forget that you know this, but it also overstates the mileage driven. |
Appreciate
0
|
12-22-2023, 05:40 PM | #34 | ||
Brigadier General
4818
Rep 3,611
Posts |
Quote:
Mostly highway at 68 - 80 mph and backroads at 35 - 55 mph. I rarely get on it and enjoy turns and corners the most. Quote:
I use a standalone GPS when I'm in the car and use it to tell me how fast the car is going. I once noticed that it reads, IIRC, ~1-2 mph lower than the car's speedo. I don't remember if my car has a digital speed reading. I think it's only an old-style needle going around some sort of dial. I almost never look at it and rely upon the standalone GPS for the car's actual speed.
__________________
2017 M240i: 25.9K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; Full PPF |
||
Appreciate
0
|
12-23-2023, 12:20 AM | #35 | |
First Lieutenant
147
Rep 353
Posts |
Quote:
Mine is up to date with all maintenance, new tires with at always the right pressure and my environment is mountain highways. From new, my average is about 26 MPG. I am at 50K.
__________________
2019 M240i, Melbourne Red, Black Interior. 3M Tint, Premium Package, Harman Kardon, Adaptive LED Head Lights, M Performance Exhaust and Diffuser, Chrome Exhaust Tips, 719M Bi Color Wheels, Black Kidney Grille, Burger Tuning JB+.
|
|
Appreciate
0
|
12-23-2023, 02:34 PM | #36 |
Brigadier General
4818
Rep 3,611
Posts |
You misunderstood; that drive was not exclusively on "plain flat highways", and I reserve the right to drive at the posted speed limit anytime I choose.
__________________
2017 M240i: 25.9K, 28.9 mpg, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; Full PPF |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|