E90Post
 


MINHS Auto Care Center
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > New Tires, Better MPG!



Reply
 
Thread Tools Search this Thread
      11-08-2012, 05:48 AM   #1
Speedwagon
First Lieutenant
 
Speedwagon's Avatar
 
Drives: Sportwagon
Join Date: Sep 2012
Location: Colorado

Posts: 366
iTrader: (0)

Sorry

Last edited by Speedwagon; 11-16-2012 at 07:15 AM.
Speedwagon is offline   United_States
0
Reply With Quote
      11-08-2012, 05:49 AM   #2
J02 335i
Lieutenant Colonel
 
J02 335i's Avatar
 
Drives: E90 335i
Join Date: Aug 2010
Location: Ontario

Posts: 1,538
iTrader: (0)

They sure could, if you went to non run flats. They are alot lighter.
__________________

Sport pack, JB3, Dci, factory oil cooler, 18" M3 reps, Michelin PSS, painted trim, black grills, smoked side markers, LED plate lights, H&R coils, muffler delete
J02 335i is offline   Canada
0
Reply With Quote
      11-08-2012, 06:23 AM   #3
efdiesel3s
Halle Berry or Hallelujah
 
Drives: '11 335d, '93 fd3s, '90 e30 m3
Join Date: Feb 2010
Location: Los Angeles

Posts: 57
iTrader: (0)

well they say you get more mpg as you break the car in. but then again you say you only have 4800 miles and put on new tires 500 miles ago, so you burnt through the run flats in 4300 miles? are you sure those tires were inflated?
efdiesel3s is offline   Netherlands
0
Reply With Quote
      11-08-2012, 09:43 AM   #4
slowSwede
Lieutenant
 
Drives: 335 coupe
Join Date: Jan 2010
Location: Skåne

Posts: 549
iTrader: (0)

I notice roughly 10% differences in mpg between different tires.
The fatter tires the more gas is wasted...or spent happily due to the added grip however you want to look at it.
slowSwede is offline   Sweden
0
Reply With Quote
      11-08-2012, 10:13 AM   #5
335BBS
Brigadier General
 
Drives: 2009 335 coupe.
Join Date: Jan 2010
Location: Toronto, Ontario

Posts: 3,607
iTrader: (0)

Quote:
Originally Posted by Speedwagon View Post
All of a sudden my 328IX E91 is getting 22.7 mpg, was 14-18 mpg, and I didn't reset the computer. I'm still driving over 100mph on the autobahn and slow city driving. I have 4800 miles on my E91. The only thing that is different is, I put 18" wheels with DWS tires on about 500 miles ago. I can't believe that the new tires would help that much with the MPG! Can this be true?
I wouldnt have thought that kind of gain would be possible.
335BBS is offline   Canada
0
Reply With Quote
      11-08-2012, 11:10 AM   #6
cypis007
Private
 
Drives: E91 318d Touring
Join Date: Nov 2011
Location: Slovakia

Posts: 59
iTrader: (0)

Pressure also matters. Old tires could had drop, in time (few months), from 2.5 to 2.0 bar, progressively. New tires are pumped up to 2.5 and that gives your significant gain in mpg.
cypis007 is offline   Slovakia
0
Reply With Quote
      11-08-2012, 09:07 PM   #7
Wires
Captain
 
Drives: 335xi
Join Date: Apr 2008
Location: Calgary

Posts: 928
iTrader: (0)

Also depends on the rubber. Some have a lot less rolling resistance. Usually the less rolling resistnace, worse grip though.
Wires is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 04:22 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST