Z4 06 vs 07 mpg?

preilly44 · 02-03-2009, 06:53 AM

I looked on fueleconomy.gov and it shows the 07 z4 having 1mpg better on the highway than an 06...did they retune the engine or something?

Patrick

rc'Z · 02-03-2009, 08:07 AM

My 07, 6spd, 36 mpg @ 60 mph on highway.

epbrown · 02-03-2009, 10:21 PM

They changed the way they test fuel economy - the cars are the same.

killjohnnyforan · 02-03-2009, 10:30 PM

feel lucky, i'm rocking an average of 18 mpg in my ///M

preilly44 · 02-05-2009, 11:34 AM

Quote:

Originally Posted by epbrown

They changed the way they test fuel economy - the cars are the same.

The site has the old testing method and the new one and they are both higher in 07 compared to 06.

rc'Z · 02-06-2009, 05:47 AM

Quote:

Originally Posted by preilly44

I looked on fueleconomy.gov and it shows the 07 z4 having 1mpg better on the highway than an 06...did they retune the engine or something?

Patrick

If 1 mpg is a major deal breaker in your choice to buy a car, a Z might not be where you want to go. No offense.

GP20 · 02-06-2009, 05:51 AM

preilly44 · 02-06-2009, 01:02 PM

The post above shows a 6 spd manual and I was looking at automatics (for my wife)....so they must have changed the final gear ratio or something between 06/07 on the auto trans Z4s.

rc'Z · 02-09-2009, 06:04 AM

Quote:

Originally Posted by preilly44

The post above shows a 6 spd manual and I was looking at automatics (for my wife)....so they must have changed the final gear ratio or something between 06/07 on the auto trans Z4s.

From previous posts, the auto doesn't get the mpg that a 6spd can get. The auto shifts itself when it thinks it is supposed to around town. I don't use all 6 gears around town, choosing to skip gears. I'm in 6th gear at 45mph. Straight around town driving is a little less than 26 mpg for me.

02-03-2009, 06:53 AM	#1
preilly44 Enlisted Member 8 Rep 38 Posts Drives: 04 Z4 Join Date: May 2007 Location: PA iTrader: (0)	Z4 06 vs 07 mpg? I looked on fueleconomy.gov and it shows the 07 z4 having 1mpg better on the highway than an 06...did they retune the engine or something? Patrick
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02-03-2009, 08:07 AM	#2
rc'Z Captain 13 Rep 821 Posts Drives: 2009 335i Convertible Join Date: Dec 2007 Location: Virginia iTrader: (0)	My 07, 6spd, 36 mpg @ 60 mph on highway.
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02-03-2009, 10:21 PM	#3
epbrown Colonel 60 Rep 2,128 Posts Drives: BMW M Coupe, Porsche Boxster S Join Date: May 2007 Location: Chicago, IL iTrader: (0)	They changed the way they test fuel economy - the cars are the same.
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02-03-2009, 10:30 PM	#4
killjohnnyforan First Lieutenant 29 Rep 339 Posts Drives: ///M Coupe Join Date: Jun 2007 Location: NY iTrader: (1)	feel lucky, i'm rocking an average of 18 mpg in my ///M
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02-06-2009, 05:51 AM	#7
GP20 Major 95 Rep 1,269 Posts Drives: Z4M, F80 M3, 991.2 GTS Join Date: Jan 2007 Location: Canada iTrader: (5)	__________________ 2019 Porsche 911 4 GTS 2016 BMW M3 2008 BMW Z4M coupe
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02-06-2009, 01:02 PM	#8
preilly44 Enlisted Member 8 Rep 38 Posts Drives: 04 Z4 Join Date: May 2007 Location: PA iTrader: (0)	The post above shows a 6 spd manual and I was looking at automatics (for my wife)....so they must have changed the final gear ratio or something between 06/07 on the auto trans Z4s.
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