2011 X3 35i cold starting trouble and lower mpg

torzeck · 01-13-2013, 04:02 PM

Car has 18500 miles on her and I always buy Shell premium.
Lately the morning temperatures have been in the low 30's (Fahrenheit).
Car takes a couple or more tries to stay started and mpg is significantly dropped.

Last year no starting issues what so ever.

I know colder weather and ethanol in the gas wil lower the mpg, but compared to last year it seems dramatically worse. Avg. 13mpg this winter vs. 18mpg last winter.

I'm taking her in tomorrow but anyone have any ideas or similar experiences.

TIA for any insight.

Want the thrill · 01-13-2013, 04:54 PM

HPFP maybe? I'm getting 20.5 on my 2011 35i in town and 28ish on the highway. Something is not right.

kskpsu · 01-13-2013, 05:02 PM

Worth digging into...same year and mileage here, but not experiencing those issues with significantly colder temps. Turned over fine this morning with an ambient temp of 1 Fahrenheit (why do I live here). Mpg has suffered a little, but I attribute that to winter blend fuel and the inherent side effect of worse fuel efficiency.

rmeir · 01-13-2013, 05:44 PM

motors usually like cold better than heat. check yr air filter?

01-13-2013, 04:02 PM	#1
torzeck Lieutenant 52 Rep 400 Posts Drives: 2011 X3 35i, 2020 X3 30i Join Date: Mar 2005 Location: Portland Oregon iTrader: (0)	2011 X3 35i cold starting trouble and lower mpg Car has 18500 miles on her and I always buy Shell premium. Lately the morning temperatures have been in the low 30's (Fahrenheit). Car takes a couple or more tries to stay started and mpg is significantly dropped. Last year no starting issues what so ever. I know colder weather and ethanol in the gas wil lower the mpg, but compared to last year it seems dramatically worse. Avg. 13mpg this winter vs. 18mpg last winter. I'm taking her in tomorrow but anyone have any ideas or similar experiences. TIA for any insight.
	Appreciate 0 Tweet Quote

01-13-2013, 04:54 PM	#2
Want the thrill Lieutenant Colonel 330 Rep 1,560 Posts Drives: 2022 X4M40i, retired ‘11 X3 Join Date: Mar 2011 Location: MI iTrader: (2) Garage List 2022 X4M40i [10.00]	HPFP maybe? I'm getting 20.5 on my 2011 35i in town and 28ish on the highway. Something is not right.
	Appreciate 0 Quote

01-13-2013, 05:02 PM	#3
kskpsu First Lieutenant 176 Rep 360 Posts Drives: 1M; E90 M3 ZCP; M4 GTS Join Date: Jul 2011 Location: Minneapolis, MN iTrader: (0) Garage List '11 BMW 1M [9.83]	Worth digging into...same year and mileage here, but not experiencing those issues with significantly colder temps. Turned over fine this morning with an ambient temp of 1 Fahrenheit (why do I live here). Mpg has suffered a little, but I attribute that to winter blend fuel and the inherent side effect of worse fuel efficiency. __________________ -kskpsu
	Appreciate 0 Quote

01-13-2013, 05:44 PM	#4
rmeir Private First Class 23 Rep 160 Posts Drives: x3 Join Date: Apr 2012 Location: chicago il iTrader: (0)	motors usually like cold better than heat. check yr air filter?
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search