BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
European Auto Source
Post Reply
 
Thread Tools Search this Thread
      09-07-2012, 12:46 AM   #1
SuicideM
New Member
 
Drives: 2008 M3 Coupé
Join Date: Mar 2012
Location: SoCal

Posts: 20
iTrader: (0)

To drive or not to drive...

So as I drive my car around and think about letting it do all the work and shift gears for me, I come across a thought. When the car is in automatic mode it changes gears 2500 or less. Last time I checked, these are high revving engines. Why would I want to drive 45mph in 7th gear?? Shouldn't it be switching at 3300 to 3500??

Here's the question. What rpm/mph and gears are most of you driving around in? IE: 45 mph in 4th or 5th?? Why go into higher gears if I'm only at 3000 rpm??
__________________
Nothing more dangerous than a Marine with a drug waiver and a rifle...

Drive it like you stole it!

H&R Springs/H&R Spacers/AFE Filter/RPI Scoops/RPI GTM Race Exhaust/ESS Tune
SuicideM is offline  
0
Reply With Quote
      09-07-2012, 12:48 AM   #2
Marco@McKennaPerformance
BimmerPost Supporting Vendor

 
Drives: E90 M3
Join Date: Aug 2012
Location: Norwalk, CA

Posts: 522
iTrader: (2)

Send a message via AIM to Marco@McKennaPerformance Send a message via MSN to Marco@McKennaPerformance
Regular automatic mode is built for fuel efficiency so it changes gear at the most fuel efficient point.
Marco@McKennaPerformance is offline  
0
Reply With Quote
      09-07-2012, 12:57 AM   #3
SuicideM
New Member
 
Drives: 2008 M3 Coupé
Join Date: Mar 2012
Location: SoCal

Posts: 20
iTrader: (0)

Quote:
Originally Posted by Philip@McKennaPerformance View Post
Regular automatic mode is built for fuel efficiency so it changes gear at the most fuel efficient point.
Easy enough answer. Thanks bro!
__________________
Nothing more dangerous than a Marine with a drug waiver and a rifle...

Drive it like you stole it!

H&R Springs/H&R Spacers/AFE Filter/RPI Scoops/RPI GTM Race Exhaust/ESS Tune
SuicideM is offline  
0
Reply With Quote
      09-07-2012, 09:25 AM   #4
abehwang
Captain
 
Drives: e90 m3
Join Date: Mar 2011
Location: US

Posts: 479
iTrader: (0)

Is it more fuel efficient to drive at around 2500-3000 rpm? near optimal torque?
__________________
2008 E90 M3: Alpine White/ Fox Red Novillo/ Brushed Aluminum | 6MT | Premium | Cold Weather | Technology | EPS | PDC | Ipod/USB |

Fuelly :: Adelei's Gas Mileage
abehwang is offline  
0
Reply With Quote
      09-07-2012, 09:38 AM   #5
Sean05
Putcha ang ganda...
 
Sean05's Avatar
 
Drives: 08 MR E92 M3
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

Posts: 5,287
iTrader: (9)

Send a message via Yahoo to Sean05
in my 6MT i switch every 2800 - 3200 RPM...
__________________
Sean05 is offline   Philippines
0
Reply With Quote
      09-11-2012, 01:33 AM   #6
Kradi
Private
 
Kradi's Avatar
 
Drives: 2014 F06 M6
Join Date: May 2012
Location: Los Angeles

Posts: 63
iTrader: (0)

40 in 3rd, 60 in 5th, 70+ in 6th usually shifting at 3500

I absolutely hate 7th... If I am driving 7th gear (highway driving) I find myself shifting down, accelerating, shifting back up, and repeating the process.

Yes, I get terrible gas mileage. Not driving a Prius
Kradi is offline  
0
Reply With Quote
      09-11-2012, 09:17 AM   #7
mamadub
Captain
 
mamadub's Avatar
 
Drives: Melbourne Red 2011 E93
Join Date: Oct 2011
Location: Arizona

Posts: 813
iTrader: (0)

Quote:
Originally Posted by Kradi View Post
40 in 3rd, 60 in 5th, 70+ in 6th usually shifting at 3500

I absolutely hate 7th... If I am driving 7th gear (highway driving) I find myself shifting down, accelerating, shifting back up, and repeating the process.

Yes, I get terrible gas mileage. Not driving a Prius
This!!
__________________


Black Novillo Extended Leather, Convenience Package, Premium Package 2, DCT, DDC, BMW Apps, Custom Stereo upgrade, Eisenmann Sport Black Series Exhaust, 20"HRE's P45SC's. Color matched Brembo 380/345's, KW Coilovers
mamadub is offline   United_States
0
Reply With Quote
      09-11-2012, 10:30 AM   #8
WarrantyTracker
Track? What Track? I was just riding along . . .
 
Drives: Alpine White E92 M3
Join Date: Apr 2012
Location: An Undisclosed Location

Posts: 542
iTrader: (0)

I feel like Drive is part of the reason the car is so utterly street-able. I wouldn't hesitate to put it in D1 and slide one of my elderly relatives behind the wheel. The car isn't going to do anything to surprise them if they just drive it like a Buick. Well, actually, the first few stops will probably paste them to the windscreen, but after that . . . .

I cannot wait to finish break in so I can find out the dark side of this puppy.
WarrantyTracker is offline   United_States
0
Reply With Quote
Post 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 07:34 AM.




m3post
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