gas milega droped 4mpg - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 14 Old May 1st, 2008, 10:34 am Thread Starter
 
Join Date: Nov 2003
Posts: 6
gas milega droped 4mpg

I have a 02 LT bought it new and according to the MPG computer it has always gotten 41-43 MPG. I just had the 36000 mile service at the same BMW service center A&S BMW that has always done the service. Now my mileage is 36-37. I have been watching it for 1000 miles and it is consistent. I contacted them they want to charge me to evaluate. Not sure what they would check. They claim they only adjusted the valves and replaced the plugs. Any ideas? My driving conditions are the same.
macreal is offline  
Sponsored Links
Advertisement
 
post #2 of 14 Old May 1st, 2008, 10:43 am
Junior Member
 
BMW-DSO's Avatar
 
Join Date: Dec 2007
Location: New Port Richey, FL, United States
Posts: 6
Re: gas milega droped 4mpg

I have also found that my 2003 LT had a significant drop in mpg when they switched to 10% ethanol.

"The only real voyage of discovery consists not in seeking new landscapes but in having new eyes."
Marcel Proust
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2003 K1200LT Impala Brown

Bill Dent
New Port Richey, FL

BMWMOA #137835
BMW-DSO is offline  
post #3 of 14 Old May 1st, 2008, 10:48 am
Senior Member
 
joegottberg's Avatar
 
Join Date: Oct 2006
Location: Mooresville, NC, USA
Posts: 1,191
Re: gas milega droped 4mpg

Ditto for me, the corn-squeezins are better in the belly than the tank.

If the pump says "may contain up to 10% Ethanol" I drive off.

2005 KLT "Old Blue"

Bruno the "Bugg"


Democracy will only exist until 51% of the population believes they can live off the other 49% .
joegottberg is offline  
 
post #4 of 14 Old May 1st, 2008, 10:51 am
Senior Member
 
Join Date: Aug 2005
Location: Blossvale, NY, USA
Posts: 577
Cool Re: gas milega droped 4mpg

I have the same question, except i have dropped from 49 mpg average to 42.
and If my recent trip to the dealer is any indication it may now be even lower. Filled tank at start and BC indicated 293 miles. trip was 128 miles and BC indicated 85 miles to empty. The first drop came after the 18K service. Now after the 36K service it may be dropping again. If this keeps up I will need a trailer tanker to get any place further away then the closest gas station.

Toby in New York
1983 R80RT Red (sold)
'03 R1200CLC (T-boned and replaced with)
'04 R1200CL Sidestand problem, BMW traded me for
'05 K1200LT. Goldie, Priceless
Lusting after K1600 GTL
tobiwan is offline  
post #5 of 14 Old May 1st, 2008, 11:15 am
Senior Member
 
drifter36's Avatar
 
Join Date: Jun 2003
Location: Rockaway Borough, NJ, USA
Posts: 306
Re: gas milega droped 4mpg

I have an 03. The mileage went from mid forties to mid thirties over time. After reading a few threads here, I decided to change out the O2 sensor. After 3 tankfuls, I'm back to mid forties. Its a bit of a pain to replace but it made a big difference for me. I didn't bother to get a fault reading from BMW, I just went ahead and changed it.
Bob

Bob
2003 K1200LT Black
Rockaway, NJ
drifter36 is offline  
post #6 of 14 Old May 1st, 2008, 11:56 am
Senior Member
 
hallzee's Avatar
 
Join Date: Mar 2006
Location: Gold Country, CA, USA
Posts: 2,571
Re: gas milega droped 4mpg

Quote:
Originally Posted by drifter36
I have an 03. The mileage went from mid forties to mid thirties over time. After reading a few threads here, I decided to change out the O2 sensor. After 3 tankfuls, I'm back to mid forties. Its a bit of a pain to replace but it made a big difference for me. I didn't bother to get a fault reading from BMW, I just went ahead and changed it.
Bob
How many miles on it when you replaced that O2 sensor?

Brian
CCR: 2008, Midway; 2011, Boise; 2012, Duluth; 2014, Chattanooga. MOA: Billings, 2015; SLC, 2017
CCR-R: 2018, Russellville
'13 K1600 GTL-P - "Eva"
Sold but "beloved" ride: K12 LT - "Pepe"
IBA #31242 (SSx2, BB, BBG)
MOA #136148

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
-
hallzee is offline  
post #7 of 14 Old May 1st, 2008, 1:40 pm
Senior Member
 
drifter36's Avatar
 
Join Date: Jun 2003
Location: Rockaway Borough, NJ, USA
Posts: 306
Re: gas milega droped 4mpg

I had 24k on it Brian. I've also noticed that there is almost no soot buildup on the tail pipe. I used to think the soot was normal. Somewhere on this board is a really good thread that details the replacement. Pixs as well. It's not technically difficult to do the job, just a PIA screwing in the new sensor.
Bob

Bob
2003 K1200LT Black
Rockaway, NJ
drifter36 is offline  
post #8 of 14 Old May 1st, 2008, 2:44 pm
Senior Member
 
zaphod's Avatar
 
Join Date: Aug 2003
Location: Little Rock, AR, USA
Posts: 654
Re: gas milega droped 4mpg

Did you use an OEM replacement or the universal Bosh?

Malcolm McGee
Little Rock, AR
'00 K1200LTC Canyon Red
'09 Kawasaki KLR 650
'96 Bunkhouse
IBA #24557
BMWMOA #117769


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
zaphod is offline  
post #9 of 14 Old May 1st, 2008, 3:14 pm Thread Starter
 
Join Date: Nov 2003
Posts: 6
Re: gas milega droped 4mpg

I have a lot of black soot building up on the tail pipe which I don't think I noticed before. where is the link for the O2 sensor?
mark
macreal is offline  
post #10 of 14 Old May 1st, 2008, 3:37 pm
Senior Member
 
lenny's Avatar
 
Join Date: Jan 2004
Location: wallingford, CT, USA
Posts: 716
Re: gas milega droped 4mpg

i thought the same thing on my 2002, till i recalibrated my bc,,,not sure where the formula is ,,but its in here somewhere,,,im getting 44-48 keeping it around 60 mph,burning 87 octane
lenny is offline  
post #11 of 14 Old May 1st, 2008, 9:09 pm
Senior Member
 
gbob's Avatar
 
Join Date: Sep 2006
Location: Nevada, MO, USA
Posts: 461
Re: gas milega droped 4mpg

I to have lost 2-3 MPG after MO state government decided the bike should drink white whiskey (E10) .Best is 45MPG with Shell V power 93 oct. down in Texas but still E10, running 70MPH into head wind. I have almost no tail pipe soot after changing O2 sensor and NGK Iriadium plugs 2 yrs ago , 35MPG before and was 49-50 after ,was a universal Bosch from Ebay .

Bob G
99LT
gbob is offline  
post #12 of 14 Old May 2nd, 2008, 10:16 pm
Senior Member
 
Join Date: Jun 2005
Location: , ,
Posts: 452
Re: gas milega droped 4mpg

I live on the DE/MD line and buy no gas on the DE side. My '99 is sensitive to ethanol to the tune of 4 or 5 mpg. Also, various "winter blends" in urban areas have had the same impact in the past.

Ethanol: Cost more to make, is significantly less efficient and adds to food inflation and shortages. What a great idea.
rkimmel2 is offline  
post #13 of 14 Old May 2nd, 2008, 10:27 pm
 
Join Date: May 2006
Posts: 162
Re: gas milega droped 4mpg

My '04 LT had dropped almost 9 mpg. I just completed my 24K service, everything looked good, filters changed, spark plugs looked great, valves in spec. I thought it was the Oxygen sensor, too. I went to the dealer, they hooked it up to the computer and found the sensor was OK but there was a fault code showing on one of the throttle functions. Reset the fault code, gas mileage back to normal.
NascaLT is offline  
post #14 of 14 Old May 24th, 2008, 2:33 pm Thread Starter
 
Join Date: Nov 2003
Posts: 6
Re: gas milega droped 4mpg

I did change the O2 sensor. the mileage went back up to 41. I found a bosch replacement sensor on line using BMW part #. it was less than half price. who ever posted the pictures for replacing the sensor did a great job. I would tie a string on the old conector before pulling it out made it easy to pull back through. It tould right at 2 hours to change i took my time no hurry. Thanks for the help
mark
macreal is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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