BAD KM/L OR MPG....HELP!

Reply Subscribe

Thread Tools

Search this Thread

Jun 24, 2008 | 04:21 AM

#11

newbie21

Thread Starter

Members

Joined: Apr 2008

Posts: 12

Likes: 0

My Ride: 2005 530i - Titanium Silver Premium Sports Package 20"Chrome Wheels w/ Black Removable Inserts 20% Titanium Black Tint Whats next...?

Quote:

Originally Posted by tom_hou' post='608700' date='Jun 23 2008, 09:17 PM

I have the same car as you, but with stock 17" wheels. Over the two years I've had it, I've averaged around 20 mpg in Houston traffic (maybe 75% street and 25% freeway @ 60-70 mph). I keep the front at 36 psi and the rear at 40 and use premium fuel.

Could the difference in wheel size (your 20 vs my 17) increase rolling resistance and thereby reduce mileage?

I have found that if I'm in DS mode and driving at all aggressively, the mileage quickly drops to 17-18 [measured on the computer for about a half tank basis]. Since aggressive and conservative are so subjective, maybe that's in play for you...???

I dont think my wheel size has anything to do with it...cuz I have only had the wheels for about 3 months...and I was driving it with the stock 18" wheels and my average was very similar.!!

Jun 24, 2008 | 07:49 AM

#12

bad2bone

Members

Joined: Jun 2007

Posts: 160

Likes: 0

From: Germany

hey nebie21, get some 18" wheels/tires and you'll do much better. I get 9.3L/100km with my 245/40 18s.

Jun 24, 2008 | 07:52 AM

#13

newbie21

Thread Starter

Members

Joined: Apr 2008

Posts: 12

Likes: 0

My Ride: 2005 530i - Titanium Silver Premium Sports Package 20"Chrome Wheels w/ Black Removable Inserts 20% Titanium Black Tint Whats next...?

Quote:

Originally Posted by bad2bone' post='609031' date='Jun 24 2008, 11:49 AM

hey nebie21, get some 18" wheels/tires and you'll do much better. I get 9.3L/100km with my 245/40 18s.

from jan- til march that is what i had on. same MPG or l/100km!! I dont think my tires made a difference

Jun 24, 2008 | 07:57 AM

#14

DrLev99

Contributors

Joined: May 2007

Posts: 3,987

Likes: 0

From: Pittsburgh, PA

My Ride: 2008 Alpine White 550i Sport, Cream Beige Interior, 6-Sp Manual - retired 9/2011

Quote:

Originally Posted by melimel' post='608552' date='Jun 23 2008, 05:38 PM

dont know about all that technical stuff dude.. but my car SUCKS gas like its going out of style.. :thumbsdown: MAYBE 15 miles to the gallon id say.

.lol.. maybe someone else can help you.. tell you the truth you should just forget it.. either way.. your screwed... gas prices suck!! and you need it.. soooo

Damn, Mel!

My M5 is getting better gas mileage than that...combined driving!

And to the OP, I got slightly over 30mpg, just highway, on my old 530....averaged around 24mpg with 65% highway.

Jun 24, 2008 | 08:32 AM

#15

xoeightx

Senior Members

Joined: Sep 2007

Posts: 1,037

Likes: 1

From: Orange County

I have a 06 530i and get only about 18 MPG with 75% city and 25% highway. It sucks, especially with the rising gas prices. I wish I could get more MPG like some of the other people on the forum.