'Reset' MPG - Hyundai Forums : Hyundai Forum
Reply
 
LinkBack Thread Tools
#1 Old 11-07-2011, 02:42 AM
senior member
 
Em-squared's Avatar
 
Join Date: Aug 2011
Location: near Portland, OR
2012 Nissan Leaf SL; 2012 Nissan X-Terra Pro-4X
Posts: 6,837
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Em-squared is an unknown quantity at this point
Garage
(Thread Starter)
'Reset' MPG

I have been mostly driving my car to and from work, which is less than 2 miles one way and involves a lot of stop and go. My mileage reading has been less than great lately, staying at around 17 or 18 MPG, even after running empty and refilling with higher quality gas.

I went to a get-together tonight and afterward took a coworker home via freeway. I noticed that on the freeway, even driving on a relatively flat incline and going 55 to 60 MPH, that my reading was still only about 18. So, I pressed the 'reset' button for the very first time, and when the thing finally showed numbers again, I was getting way better results. Stayed between 33 and 40, depending on whether I was going up or downhill.

So, I've heard over and over that you can't trust that thing entirely and need to calculate your total mileage. But still, I am confused as to why my reading was "stuck," and that by pressing "reset," that it somehow got "unstuck."

Em-squared is offline  
Sponsored Links
Advertisement
 
#2 Old 11-07-2011, 02:57 AM
SENIOR MODERATOR
 
lovemysantafe's Avatar
 
Join Date: Apr 2006
Location: Portland, Oregon (USA)
Drives: 2012 Elantra Limited
Posts: 7,796
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
lovemysantafe is an unknown quantity at this point
Have you ever reset it before? If not then whatever it was showing was your lifetime average, hence the 'stuck' feeling.

- Andrew
'12 Elantra Limited w/Tech - 'Emma'
Titanium Gray / Gray Leather
Paid Off at 11:30 PM on 9.25.14!!

------------
R.I.P. Robin Williams - 1951-2014
"We had gay burglars the other night. They broke in and rearranged the furniture."
lovemysantafe is offline  
#3 Old 11-07-2011, 03:14 AM
senior member
 
Em-squared's Avatar
 
Join Date: Aug 2011
Location: near Portland, OR
2012 Nissan Leaf SL; 2012 Nissan X-Terra Pro-4X
Posts: 6,837
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Em-squared is an unknown quantity at this point
Garage
(Thread Starter)
No, I'd never reset it, but if that's the case, then my lifetime average SUCKS! Still, I have a hard time understanding that, since it has gone up and down drastically in the past.
Em-squared is offline  
#4 Old 11-07-2011, 08:07 AM
Senior Member
 
newtmaker's Avatar
 
Join Date: Aug 2011
Location: Central FL
Posts: 297
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
newtmaker is an unknown quantity at this point
Have you ever "done the math" and calculate the mpg the old fashioned way?
Lots of reports out there where actual mpg is less than the computer has calculated, BUT, there may be times when it goes the other way, in your favor.

Walt
newtmaker is offline  
#5 Old 11-07-2011, 09:46 AM
SENIOR MODERATOR
 
someguy's Avatar
 
Join Date: Feb 2011
Location: Louisville, KY
2011 Elantra GLS 2009 Pathfinder
Posts: 8,406
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
someguy is an unknown quantity at this point
Garage
This should reset automatically when you get gas but you have to get 3 or 5 gallons, cant remember exactly

2011 Titanium Gray Elantra GLS
someguy is online now  
#6 Old 11-07-2011, 10:17 AM
Senior Member
 
rosedoodle's Avatar
 
Join Date: Aug 2011
Location: North Central Florida
Drives 2012 Elantra GLS 6MT
Posts: 364
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
rosedoodle is an unknown quantity at this point
Garage
That would have been (supposedly) the average for that tank - or since you last put sufficient gas in it. I reset it occasionally. I only use it as a rough guide, which I think is its purpose. The only way to know for sure is to calculate from a full tank, getting your real average.

~~~~~
2012 Elantra GLS M6, includes Comfort Package only... Michelin Defenders and KYB Gas-a-just shocks YIPPEE!!

rosedoodle is offline  
#7 Old 11-07-2011, 11:43 AM
Senior Member
 
dmlexpert's Avatar
 
Join Date: May 2010
Location: Long Island, NY
2011 Elantra PZEV 6AT 2011 Sonata 6MT
Posts: 808
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
dmlexpert is an unknown quantity at this point
Your true 'average' would be a number somwhere in between your 17-18 daily commute mpg and the 33-40 highway trip. If you drive 100 miles at 18mpg and 100 miles at 36mpg, your average would be 27. The true average is easily calculated if you reset the trip odometer and fill the tank each time you add fuel. Then divide #miles on the trip odometer by #gallons added.

After the highway trip, the number will be somewhere in the 30s and then when you commute again, it will fall to somewhere just above the normal 17-18. When you fill up again, it will reset and you will again see the number you usually see for your average. As winter approaches, the number will fall and will probably be lower than what you normally expect, and then it will increase again when the weather warms in Mar/Apr.
dmlexpert is offline  
#8 Old 11-07-2011, 11:57 AM
Senior Member
 
Join Date: May 2008
Location: USA, Iowa
2008 Elantra GLS
Posts: 336
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
alanb is an unknown quantity at this point
I am not surprised at your 17 to 18 average. A 2 mile commute is a killer to MPG, especially in cold weather.
alanb is offline  
#9 Old 11-07-2011, 03:45 PM
Junior Member
 
Join Date: Sep 2011
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
hobbes666
I got a phone app called gas manager. I have been using it since the first tank. Now im on the 5th tank and it is calculating the same results as shown on the instrument panel. I am consistantly getting 8 l/100km per tank. That's 30 -32 average MPG. Im told by a family friend that has a 2011 elantra, that he was getting significantly better MPG after 15000 kms.
hobbes666 is offline  
#10 Old 11-07-2011, 06:34 PM
senior member
 
Em-squared's Avatar
 
Join Date: Aug 2011
Location: near Portland, OR
2012 Nissan Leaf SL; 2012 Nissan X-Terra Pro-4X
Posts: 6,837
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Em-squared is an unknown quantity at this point
Garage
(Thread Starter)
Thanks everyone for your input. While I do know how to calculate mileage (I took calculus in college, after all), I am often too distracted or lazy to take the time to do it.

The weather has been super cold lately, which could explain poor mileage. I was confused because I filled up with an entire tank of gas, so the thing should have reset, but it seemed to be stuck, even when on the freeway. I doubt there is any problem with my car, but I was just curious.
Em-squared is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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



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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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