2003 Z4 Fuel Efficiency

Ranger_Vet68 · 01-19-2015, 12:27 AM

Question. I just checked the mpg, and it tells me 20-29. Now I'm guessing that with out the "Sport" mode, that maybe a good guess. When I drive, I just use the "Sport Mode" but I don't engage the "Tiptronic". But it's eating up gas in a big hurry. Now I don't drive that much, and I fueled up the car Three days ago, and it's already 3/4 full. A quarter tank within three days......So tell me, since I just bought this car. What is the best way to drive it??

Thank You.

Sephiroth · 01-19-2015, 01:36 AM

You didn't buy a Z4 for gas mileage did you? Stop worrying about that, find some nice roads by the coast and enjoy!

Ranger_Vet68 · 01-19-2015, 05:20 AM

I already have done most of the of the 101 that get's you down to the coast. Great winding roads, and the car handles it GREAT. It just when I travel those roads I would MUCH rather have a manual, Your in more control with that. (At least in my opinion)

MattBianco · 01-26-2015, 02:43 PM

Myself and one other user have clocked US 39 MPG in X5 diesels.

There is over 400 lbs/ft of torque in the engine, and despite size/weight 0-60 in 6.5sec. Of course, you won't get that mileage if you want to set 0-60 records.

This is the thread with posted MPGs. http://f15.bimmerpost.com/forums/sho....php?t=1081659

You may want to consider a similar thread in the Z4 area, where users can post their best/worst/usual MPG.

BlueM235 · 02-13-2015, 08:46 PM

M235 XI is a gas pig. I can get barely 9.0 l/100kms on highway with cruise control, 8 speed automatic and with Eco-pro on.

My 2011 335Xi 6 speed automatic would get down to 7.4l/100kms

Vervain · 02-14-2015, 05:15 AM

Quote:

Originally Posted by BlueM235

M235 XI is a gas pig. I can get barely 9.0 l/100kms on highway with cruise control, 8 speed automatic and with Eco-pro on.

My 2011 335Xi 6 speed automatic would get down to 7.4l/100kms

Same. My M235i is a guzzler. averaging 15l/100km in Eco pro driving slowly.

MattBianco · 02-28-2015, 02:33 PM

As a comparative, these are based on results posted in the F15 thread.
Links:

• View collected MPG / L/100k data Complete Data Table
• Interactive chart by engine type
• Interactive chart by forum member
• Interactive chart by Usage

• A good online MPG converter

Tabulated with all submitted data as of 08 MAR 2015:

rbasque · 01-07-2016, 02:19 PM

2015 335xi xDrive 4 dr coupe in eco pro, 100 % hiway with cruise control set at 78 to 83 mph (in Utah with 80 mph speed limit)., iDrive computer says 31.3 mpg Car not fully broke in yet (under 1200 miles).

Ill take it !!!

JustDriveIt · 01-08-2016, 02:45 PM

I had a 2003 BMW z4 as well with sports package. I noticed at first the MPG was just ok. About a year later I took it to get new tires and the mechanic told me the ones on the back were actually the wrong size..... I then told him to put the right size ones on (Michelin primacy MXV4) and my gas milage shot up to about 29 hwy and 24 city.

SO check tires/inflation psi, etc. and then look at changing air filter if it is dirty.

MightyMouseTech · 01-08-2016, 03:31 PM

That is not very scientific OP. "Gauge shows 20-29" Well, which is it? Have you actually measured the actual mileage? Also, 3 days and now showing 3/4 tank is pretty meaningless. I can go through 4 tanks in one day. Do you reset the gauge every fill up?

01-19-2015, 12:27 AM	#1
Ranger_Vet68 Private First Class 29 Rep 170 Posts Drives: 2003 Z4 3.0i E85 Roadster Join Date: Jan 2015 Location: Los Angeles iTrader: (0)	2003 Z4 Fuel Efficiency Question. I just checked the mpg, and it tells me 20-29. Now I'm guessing that with out the "Sport" mode, that maybe a good guess. When I drive, I just use the "Sport Mode" but I don't engage the "Tiptronic". But it's eating up gas in a big hurry. Now I don't drive that much, and I fueled up the car Three days ago, and it's already 3/4 full. A quarter tank within three days......So tell me, since I just bought this car. What is the best way to drive it?? Thank You.
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01-19-2015, 01:36 AM	#2
Sephiroth 4-6-8 242 Rep 990 Posts Drives: for the fun of it Join Date: Nov 2007 Location: Jax, FL iTrader: (1)	You didn't buy a Z4 for gas mileage did you? Stop worrying about that, find some nice roads by the coast and enjoy! __________________ M3 E46 PY/Black S2000 AP2 GPW/Tan
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01-19-2015, 05:20 AM	#3
Ranger_Vet68 Private First Class 29 Rep 170 Posts Drives: 2003 Z4 3.0i E85 Roadster Join Date: Jan 2015 Location: Los Angeles iTrader: (0)	I already have done most of the of the 101 that get's you down to the coast. Great winding roads, and the car handles it GREAT. It just when I travel those roads I would MUCH rather have a manual, Your in more control with that. (At least in my opinion)
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01-26-2015, 02:43 PM	#4
MattBianco Lieutenant Colonel 1299 Rep 1,886 Posts Drives: 2015 X5 35d msport Join Date: Jun 2014 Location: Marin, California iTrader: (0)	Myself and one other user have clocked US 39 MPG in X5 diesels. There is over 400 lbs/ft of torque in the engine, and despite size/weight 0-60 in 6.5sec. Of course, you won't get that mileage if you want to set 0-60 records. This is the thread with posted MPGs. http://f15.bimmerpost.com/forums/sho....php?t=1081659 You may want to consider a similar thread in the Z4 area, where users can post their best/worst/usual MPG. __________________ Amber or Red Rear Turn Signals? Vote/have your say: LINK. Post your MPGs 100L/km here: LINK X5 F15 Engines Compared LINK Take the BMW X5 F15 Survey: LINK See the Results: LINK N57 Diesel Tuning Chips Compared LINK Last edited by MattBianco; 01-26-2015 at 03:03 PM..
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02-13-2015, 08:46 PM	#5
BlueM235 Private 10 Rep 93 Posts Drives: M4 2017 comp pkg Join Date: Nov 2014 Location: Gatineau, Québec iTrader: (0)	M235 XI is a gas pig. I can get barely 9.0 l/100kms on highway with cruise control, 8 speed automatic and with Eco-pro on. My 2011 335Xi 6 speed automatic would get down to 7.4l/100kms
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02-28-2015, 02:33 PM	#7
MattBianco Lieutenant Colonel 1299 Rep 1,886 Posts Drives: 2015 X5 35d msport Join Date: Jun 2014 Location: Marin, California iTrader: (0)	X5 F15 MPG As a comparative, these are based on results posted in the F15 thread. Links: • View collected MPG / L/100k data Complete Data Table • Interactive chart by engine type • Interactive chart by forum member • Interactive chart by Usage • A good online MPG converter Tabulated with all submitted data as of 08 MAR 2015: __________________ Amber or Red Rear Turn Signals? Vote/have your say: LINK. Post your MPGs 100L/km here: LINK X5 F15 Engines Compared LINK Take the BMW X5 F15 Survey: LINK See the Results: LINK N57 Diesel Tuning Chips Compared LINK Last edited by MattBianco; 03-08-2015 at 03:11 PM..
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01-07-2016, 02:19 PM	#8
rbasque Registered 0 Rep 1 Posts Drives: 2015 335xi Xdrive 4 door Join Date: Jan 2016 Location: Salt Lake City, UT iTrader: (0)	2015 335xi MPG 2015 335xi xDrive 4 dr coupe in eco pro, 100 % hiway with cruise control set at 78 to 83 mph (in Utah with 80 mph speed limit)., iDrive computer says 31.3 mpg Car not fully broke in yet (under 1200 miles). Ill take it !!!
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01-08-2016, 02:45 PM	#9
JustDriveIt First Lieutenant 322 Rep 388 Posts Drives: 2025 Z4 M40i 6MT Join Date: Dec 2015 Location: US iTrader: (0)	I had a 2003 BMW z4 as well with sports package. I noticed at first the MPG was just ok. About a year later I took it to get new tires and the mechanic told me the ones on the back were actually the wrong size..... I then told him to put the right size ones on (Michelin primacy MXV4) and my gas milage shot up to about 29 hwy and 24 city. SO check tires/inflation psi, etc. and then look at changing air filter if it is dirty.
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01-08-2016, 03:31 PM	#10
MightyMouseTech Major General 4348 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	That is not very scientific OP. "Gauge shows 20-29" Well, which is it? Have you actually measured the actual mileage? Also, 3 days and now showing 3/4 tank is pretty meaningless. I can go through 4 tanks in one day. Do you reset the gauge every fill up?
	Appreciate 0 Quote