2.5l Poor Gas Mileage / How To Improve It - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 10-15-2004, 03:54 PM
n00b
 
Join Date: Oct 2004
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
specialblendj is an unknown quantity at this point
(Thread Starter)
I'm thinking about getting a '93 to '95 325i/is, but I have to say I'm a little dissapointed with the gas mileage. i believe that it is something like 20 in the city and 22 on the highway. Not that this is a fair comparisson, but a 3.9 liter v-8 making 250 horses in the new lincoln LS's gets about or better than that. This is a much newer engine, but still, were talking about a BMW. Can anyone give me a justification or explanation for the poor gas mileage in the 2.5's? How could I improve gas mileage and power at the same time? i.e. new heads/intake/exhaust and headers?
specialblendj is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 10-15-2004, 04:28 PM
n00b
 
Join Date: Oct 2004
Posts: 35
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
SemiPerfect is an unknown quantity at this point
I own a 95 BMW 325i sedan. It has pretty good accelaration to me.. Also, the specs for my car are below, straight from Edmunds.com, not sure where u got the 22 mpg for highway, but it doesn't apply for my car. (reference 28 mpg below on hwy).. I'd say if you want a cheap way to increase HP, buy a cold air intake.. easy to install, and it'll make the engine sound bigger.. I did this on my Hyundai Tiburon 03 (Injen CAI RS) and it added about 12 HP plus it sounds like a meanier engine now.. cost me $199 off the net.. They make short ram intakes but I wouldn't waste my time honestly, get you the real deal.. But i dont think your going to find a sure fire way to increase fuel efficiency.. just make sure the car is tuned up.

Performance

Acceleration (0-60 mph): 7.8 sec. Base Number of Cylinders: 6
Base Engine Size: 2.5 liters Base Engine Type: Inline 6
Horsepower: 189 hp Max Horsepower: 5900 rpm
Torque: 181 ft-lbs. Max Torque: 4200 rpm
Drive Type: RWD Turning Circle: 34.1 ft.

Fuel Data

Fuel
Fuel Tank Capacity: 17.2 gal.
EPA Mileage Estimates: (City/Highway)
Manual: 19 mpg / 28 mpg Automatic: : 20 mpg / 28 mpg
Range in Miles: (City/Highway)
Automatic: 344 mi. / 481.6 mi. Manual: 326.8 mi. / 481.6 mi.
SemiPerfect is offline  
#3 (permalink) Old 10-15-2004, 04:31 PM
Neutral Member
 
Join Date: Sep 2004
Location: Naperville, IL, USA
Posts: 86
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
uiuc240 is an unknown quantity at this point
Send a message via AIM to uiuc240 Send a message via MSN to uiuc240
How are your oxygen sensors? They have a big effect on gas mileage. Also, what about air filter? Oil? Fuel injectors OK?

My 325 averages 25 mpg. But city is about 19-20 and highway is about 28-30, just like advertised.

Eric

<img src='http://home.comcast.net/~eric_d_johnson/sig_pic.jpg' border='0' alt='user posted image' />
uiuc240 is offline  
#4 (permalink) Old 10-15-2004, 11:50 PM
Been here a while.
 
97alpineM3's Avatar
 
Join Date: May 2004
Location: Virginia
Posts: 5,375
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
97alpineM3 is a name known to all 97alpineM3 is a name known to all 97alpineM3 is a name known to all 97alpineM3 is a name known to all 97alpineM3 is a name known to all 97alpineM3 is a name known to all
Send a message via AIM to 97alpineM3 Send a message via MSN to 97alpineM3
Some quick ideas to make the MPG go up.... get some injector cleaner.. .run that.... run better gas.. meaning higher octane.. ... make sure your tires are the correct tire pressure.... make sure your air filter isnt dirty... change your oil.... mainly... just try and keep the car up on it self with maintenance.. and it will take care of you..

Good Luck

Les


1997 E36 M3 1990 E30 325i
97alpineM3 is offline  
#5 (permalink) Old 10-16-2004, 12:27 AM
Power Shifting
 
Cruzin 323is's Avatar
 
Join Date: Jul 2004
Location: Carle Place, NY
Posts: 3,677
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cruzin 323is is an unknown quantity at this point
Send a message via AIM to Cruzin 323is
wow, u guys complain alot... i have a 98 323is... and i get about 16mpg, if i am luckey!!

-SOLD..
http://www.cardomain.com/ride/2229108/1 *UPDATED 8.25.06*
R.I.P Fast 6


stuff for sale on my e36.. CHeck it out!
http://www.bimmerwerkz.com/forum/aft...e36-49128.html
Cruzin 323is is offline  
#6 (permalink) Old 10-16-2004, 01:30 AM
1st Gear Member
 
Join Date: Sep 2004
Posts: 254
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Brian325i is an unknown quantity at this point
16 mpg on a 323? Seems odd. I currently get an average of 21mpg on my 325i but I'm using some bosch +4's and I hear that could be holding back my gas mileage and performance. I'll be switching to some OEM plugs once they get shipped in .
Brian325i is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Need Carfax Report, Please Help F U Have Carfax Ac ozbmw 5-Series (E12,E28, E34, E39, E60) 2 05-11-2005 10:58 AM
Improve Gas Mileage & Performance 2000BMW323i 3-Series (E46, E90) 1 03-11-2005 09:36 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome