Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    VWVortex


    Page 1 of 11 12345 ... LastLast
    Results 1 to 35 of 352

    Thread: 2.5L Fuel economy thread.--UNOFFICIAL--

    1. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-21-2012 09:42 PM #1
      I seem to have lost the "fuel economy thread" that we had, so i decided to make a new one.

      The idea is to post milage, and share thoughts on how to improve it.





      just got into the 400s, AGAIN! For this tank i did it on 90% hwy, and at 77mph (GPS speed) in cruise control.
      While in city i did the pulse and glide method.

      So far this year i have been averaging 28 MPGs, and 370 miles per tank. Gotta love it.
      -------------------------------------------------

      What about you?

    2. Member dhenry's Avatar
      Join Date
      Feb 9th, 2009
      Location
      Va Beach
      Posts
      2,676
      Vehicles
      mkv
      02-21-2012 09:57 PM #2
      ive been getting around 325-350 a tank mixed city and hwy usually ~50miles everyday. it lasts a week but ive been mashing the pedal since i got tuned.
      on a 250mile trip to north carolina last week. i filled up on a tank of 93oct NO 10%ethanol added. i made it home on about 40%(in between halfway and 3/4s) of my fuel tank cruising at 70mph im guessing about 35+mpg
      follow me @dominickhenry | 2.5l UM tuned! | SCCA Solo FSP class |Flickr | Build Thread | FS Benz wheels

    3. Member kevin splits's Avatar
      Join Date
      Aug 23rd, 2010
      Posts
      18,565
      Vehicles
      01001011010011110 1010010
      02-22-2012 11:57 AM #3
      "The Vile Bunch" ll v2lab ll eemilitiatv ll Stay Orange.
      2008 Mkv-sold; 2003 yellow SRT-4-sold; 2009 G8 GT-sold; 1991 Talon TSI- fully built, HTA3582@30psi 600+awhp(900+awhp rebuild in progress)

    4. Member GTACanuck's Avatar
      Join Date
      Feb 20th, 2009
      Posts
      749
      Vehicles
      08' Rabbit 2.5T (RIP), 12' Golf R
      02-22-2012 12:12 PM #4
      I got 335 miles on my last tank, 23.79 MPG

      50/50 city hiway

      Average temp 35 F
      Last edited by GTACanuck; 02-22-2012 at 02:05 PM.

    5. 02-22-2012 01:46 PM #5
      Quote Originally Posted by thygreyt View Post
      What about you?
      Having just passed 3000 miles, the car's computer indicates an average of 35mpg. However fuelly indicates a bit over 33mpg. I believe the car calculates optimistically because it excludes something like the first 300 meters of any trip that begins more than two hours after the car was last turned off. I believe fuelly is a bit pessimistic due to rounding.

      2012 estimate the number of miles left to empty. Adding that to the number already driven gives a variable number that generally climbs once underway and drops toward the need for a refill. The highest combined number I've seen is 570.

      I've not yet driven more than 453 on a single tank.
      Unofficial Feelings Manager for OT. http://www.npboards.com/index.php

      "I am JIMP."

    6. Member vento 95 GL's Avatar
      Join Date
      May 25th, 1999
      Location
      Canada
      Posts
      4,957
      Vehicles
      2011 Golf 2.5
      02-22-2012 02:00 PM #6
      I'm currently getting around 37mpg on the highway at around 60mph with good weather conditions.

      The temperature is around 0-5 degrees Celcius here these days.

      In city its obviously much less , but I try to coast in neutral as much as I can and it seams to work.

      In city i usually accelerate up to 40-45mph and then let it glide when i can.

    7. Member H3LVTCA's Avatar
      Join Date
      Oct 27th, 2004
      Location
      630
      Posts
      2,669
      Vehicles
      2008 VW Rabbit
      02-22-2012 07:00 PM #7
      I've logged every gallon of gasoline that's passed through my 2.5L, and I can say that I've never gotten above 30MPG. I have all of the data in a spreadsheet document, I could post it up if anyone is interested.
      Quote Originally Posted by TrillyPop View Post
      The 2.5L forum is full of high hopes and huge disappointment.
      MKV Rabbit Dyno Thread
      MKIII Cabrio Build Thread

    8. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-22-2012 07:05 PM #8
      Quote Originally Posted by H3LVTCA View Post
      I've logged every gallon of gasoline that's passed through my 2.5L, and I can say that I've never gotten above 30MPG. I have all of the data in a spreadsheet document, I could post it up if anyone is interested.
      lol, i do it too...

      but i only starter last march... so i have only done it for barely 1 year...

    9. Member alwaysdutch's Avatar
      Join Date
      Oct 19th, 2011
      Location
      Marietta, GA
      Posts
      370
      Vehicles
      2005.5 Jetta 2.5 Package 2
      02-22-2012 07:54 PM #9
      Welcome to Atlanta. I am always at stop on the highway, so no point of trying to get 30+ mpg.....
      **- 2005.5 VW Jetta Package 2 with 2008 2.5L -**
      BFI stage 2 transmission mounts

    10. Member cracKness's Avatar
      Join Date
      Feb 19th, 2007
      Location
      Margate, FL
      Posts
      457
      Vehicles
      2007 CW Rabbit
      02-22-2012 10:34 PM #10
      I can hit over 400 miles anytime, easy. I just have to add more fuel after about 320-360 miles. It doesn't seem to matter whether it's all highway or mixed, I get about the same miles per tank just about every time.

      Needless to say I've given up on trying for great mileage in my bunny. Still love it.
      United Motorsport Software|AWE-Tuning Cat-Back Exhaust|LNT Intake|Koni Yellows w/ H&R Sports|Neuspeed 25mm RSB|NLS Short Shifter w/ 42dd Bushings & VMS Shift bracket bushings|BFI Torque Mount Insert|Lead foot

      Friends don't let friends be like Av. and PSU.

    11. Member
      Join Date
      Nov 28th, 2010
      Posts
      153
      Vehicles
      '07 Jetta WE, '10 Jetta TDI
      02-22-2012 11:13 PM #11
      Quote Originally Posted by H3LVTCA View Post
      I've logged every gallon of gasoline that's passed through my 2.5L, and I can say that I've never gotten above 30MPG. I have all of the data in a spreadsheet document, I could post it up if anyone is interested.
      This. The highest I've ever gotten was 29MPG, once. Babied the hell out of it (never went above 2k RPM, aside 5th gear highway driving), usually skipped 4th or 3rd gear. Was more or less no fun at all to drive.

      I typically see ~25mpg in the winter and ~27mpg in the summer, if I beat on it a lot... 23 or so.

    12. Member H3LVTCA's Avatar
      Join Date
      Oct 27th, 2004
      Location
      630
      Posts
      2,669
      Vehicles
      2008 VW Rabbit
      02-23-2012 12:52 AM #12
      Quote Originally Posted by PhAyzoN View Post
      The highest I've ever gotten was 29MPG, once. Babied the hell out of it (never went above 2k RPM, aside 5th gear highway driving), usually skipped 4th or 3rd gear. Was more or less no fun at all to drive.
      I couldn't of said it better myself. I have done these same things and have only been able to get 29MPG. It was on a long trip where I was cruising at 60MPH and just had my vent cooling on, no A/C.
      Quote Originally Posted by TrillyPop View Post
      The 2.5L forum is full of high hopes and huge disappointment.
      MKV Rabbit Dyno Thread
      MKIII Cabrio Build Thread

    13. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-23-2012 12:56 AM #13
      at 73 mph (odo) i can get 27 mpgs (6spd manual) and i discovered, byt data monitoring and logging that NO A/C= +1 mpg.

      for some reason i always thought it would be more.

      Also, i discovered that by gliding the hell out, and revving "high" (5k) i can get decent milage... ~27 mpg in the combined.

      Lastly, TORQUE is a GREAT little app for the Android, that with the right adapter can help a LOT!

      i use it to log almost ALL THE TIME. it also lets me monitor live sensors, and special calculations, such as MPG, intake temps, MAP, rpm, ODO speed and GPS speed, lambda, etc.

    14. Member jaso028's Avatar
      Join Date
      Aug 12th, 2007
      Location
      845
      Posts
      6,172
      Vehicles
      02.5 24v GLI, 05.5 Jetta 2.5l
      02-23-2012 12:40 PM #14
      N.E.R.D.
      White Lightning

    15. 02-23-2012 04:26 PM #15
      Thoughts on how to improve? Add aeromods. Buy a Prius or TDI.

    16. Member SocoJoe's Avatar
      Join Date
      Jul 4th, 2009
      Location
      Williamsburg, VA
      Posts
      908
      Vehicles
      '09 Racekor
      02-23-2012 05:28 PM #16
      I can't stay off the long pedal enough to worry about gas mileage. Plus I do a lot of city driving anyway. I think my highest was 390.

    17. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-23-2012 06:11 PM #17
      300 miles so far.. 1/4 tnk left

    18. Member HollisJoy's Avatar
      Join Date
      Dec 25th, 2011
      Location
      Asheville
      Posts
      515
      Vehicles
      2013 Golf
      02-25-2012 02:38 AM #18
      With only 3500 miles on the clock, Mixed driving, i'm seeing an average of 28mpg.
      If I'm cruising the hwy at 60mph, I can get up to 34mpg.
      Interstate speeds, 70+, I can pull down 30mpg.
      2.5L...BFI...UniBrace...TyrolSport...IE...UM

    19. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-25-2012 03:34 AM #19
      i fueled today, 354 miles... mixed 50/50 driving.

    20. Member GTACanuck's Avatar
      Join Date
      Feb 20th, 2009
      Posts
      749
      Vehicles
      08' Rabbit 2.5T (RIP), 12' Golf R
      02-28-2012 11:23 AM #20
      Filled up yesterday @ 90,000mi

      370 miles 50/50 hiway/city

    21. Member H3LVTCA's Avatar
      Join Date
      Oct 27th, 2004
      Location
      630
      Posts
      2,669
      Vehicles
      2008 VW Rabbit
      02-28-2012 12:33 PM #21
      Fueled up at 346.9, I just passed 38k on the odometer. Mostly (spirited) highway driving.
      Quote Originally Posted by TrillyPop View Post
      The 2.5L forum is full of high hopes and huge disappointment.
      MKV Rabbit Dyno Thread
      MKIII Cabrio Build Thread

    22. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-28-2012 01:20 PM #22
      to get the better fuel economy, i glide a lot. i do reach the speed limit quickly... but after that is gliding time.

    23. Member Skaffles's Avatar
      Join Date
      May 27th, 2011
      Location
      North Jersey
      Posts
      1,196
      Vehicles
      08 i5 Jetta
      02-28-2012 02:09 PM #23
      Quote Originally Posted by thygreyt View Post
      to get the better fuel economy, i glide a lot. i do reach the speed limit quickly... but after that is gliding time.
      What exactly is this 'pulse and glide' method, just revving high and gliding?
      MKV
      My Timeline.
      Garden State Euros
      Quote Originally Posted by eatonrabbit. View Post
      that's the great thing about opinions... everyone has them

    24. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      02-28-2012 02:18 PM #24
      Quote Originally Posted by Skaffles View Post
      What exactly is this 'pulse and glide' method, just revving high and gliding?
      Pulse and glide is for the hwy... In the city you only glide. Lol

      sent from tapatalk

    25. Member Skaffles's Avatar
      Join Date
      May 27th, 2011
      Location
      North Jersey
      Posts
      1,196
      Vehicles
      08 i5 Jetta
      02-28-2012 02:21 PM #25
      Quote Originally Posted by thygreyt View Post
      Pulse and glide is for the hwy... In the city you only glide. Lol

      sent from tapatalk
      Gotcha
      MKV
      My Timeline.
      Garden State Euros
      Quote Originally Posted by eatonrabbit. View Post
      that's the great thing about opinions... everyone has them

    26. 03-02-2012 02:08 PM #26
      Quote Originally Posted by Skaffles View Post
      What exactly is this 'pulse and glide' method, just revving high and gliding?
      It's not necessarily revving high. It's accelerating at the lowest BSFC that you can get away with (ie ~75% throttle at the highest gear you can safely use. The theoretically lowest BSFC is full throttle at low RPMS, but for a variety of reasons that's not the best thing to do on most vehicles today).

    27. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      03-02-2012 02:44 PM #27
      yeah.. i have now realized that revving high isnt that awesome...

      with the unitronic sw it was ok, but with the UM and high rpms it eats gasoline.

      i need to learn how to squeeze the mpgs out of the United Motorsports.

    28. 03-02-2012 03:12 PM #28
      Quote Originally Posted by thygreyt View Post
      yeah.. i have now realized that revving high isnt that awesome...

      with the unitronic sw it was ok, but with the UM and high rpms it eats gasoline.

      i need to learn how to squeeze the mpgs out of the United Motorsports.
      Or just accept the fact that having fun costs money

    29. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      03-02-2012 03:15 PM #29
      Quote Originally Posted by DerekH View Post
      Or just accept the fact that having fun costs money
      na usually uses more fuel than FI, but there are always ways to squeeze more mpgs.

    30. Member jaso028's Avatar
      Join Date
      Aug 12th, 2007
      Location
      845
      Posts
      6,172
      Vehicles
      02.5 24v GLI, 05.5 Jetta 2.5l
      03-02-2012 04:47 PM #30
      Quote Originally Posted by thygreyt View Post
      yeah.. i have now realized that revving high isnt that awesome...

      with the unitronic sw it was ok, but with the UM and high rpms it eats gasoline.

      i need to learn how to squeeze the mpgs out of the United Motorsports.
      on my 24v the only way to do it is @ like 68mph.. lol
      It keeps the RPMS just below the point UM's tune opens the VVT... This is just to get the optimal MPG out of the car during the rush hour commute..

      Otherwise UM just makes the loud pedal that much better!!
      N.E.R.D.
      White Lightning

    31. Member dhenry's Avatar
      Join Date
      Feb 9th, 2009
      Location
      Va Beach
      Posts
      2,676
      Vehicles
      mkv
      03-02-2012 05:00 PM #31
      Quote Originally Posted by thygreyt View Post
      yeah.. i have now realized that revving high isnt that awesome...

      with the unitronic sw it was ok, but with the UM and high rpms it eats gasoline.

      i need to learn how to squeeze the mpgs out of the United Motorsports.
      i have managed to pull around 380-400 a tank and still hit high rpm,
      also i just got updated this morning and idk if its mental but i feel more bottem end torque ie: le butt dyno
      follow me @dominickhenry | 2.5l UM tuned! | SCCA Solo FSP class |Flickr | Build Thread | FS Benz wheels

    32. Member ArminT's Avatar
      Join Date
      Mar 7th, 2010
      Location
      St Louis
      Posts
      517
      Vehicles
      09 Jetta
      03-02-2012 05:05 PM #32
      is the pulse and glide method require you putting the car in neutral or in 5th (6th for those with 6speed manual swap) after accelerating 75% or so?
      It's always the least brightest bulb in the box that I wanna screw

    33. 03-04-2012 12:39 AM #33
      Quote Originally Posted by ArminT View Post
      is the pulse and glide method require you putting the car in neutral or in 5th (6th for those with 6speed manual swap) after accelerating 75% or so?
      Accelerate at highest gear until you reach your designated speed (eg. 65 mph), then coast in neutral until speed drops to designated lower speed (eg. 50 mph), repeat. In-gear coasting works too, but not as well.

    34. Member 2pt5_20v_pwr's Avatar
      Join Date
      Jul 19th, 2011
      Posts
      230
      Vehicles
      jetta 2.5
      03-04-2012 11:39 AM #34
      Just about empty on my first tank since the SRI/tune and im only at 270mi which is about 22mpg. I need to ease up on the throttle a little

    35. Member thygreyt's Avatar
      Join Date
      Jun 7th, 2009
      Location
      fort lauderdale, FL
      Posts
      12,800
      Vehicles
      1k-m-cbta-02q-PTE5858
      03-04-2012 12:51 PM #35
      i havent finizhed my tank after the SRI install...

      the one i finished was aboyt 300 miles, but i did a lot of services (change of fuel injectors and fuel filter) and there i lost some fuel, so i'm not going to count that tank

    Page 1 of 11 12345 ... LastLast

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •