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    Thread: 2.5 gas mileage thread

    1. 08-17-2010 02:21 PM #36
      08 2dr Rabbit Tiptronic
      No mods except larger sticky tires (245's on lightweight 17's)

      Day to day driving, which is 80% stoplights, and 20% cruising 45-60mph, I average 22-24mpg
      This is taking it easy too.
      When filling up after an autocross, its about 21.

      Full on highway driving, I've gotten 35 before, but I was drafting a semi doing 60 most of the trip. Typically though, It will sit around 31-32 cruising at 75-78.


      Driving around in the summer I get worse mileage due to the AC being on constantly, during spring and fall I get 26 on my day to day with windows down.

    2. Member VWShocker's Avatar
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      08-17-2010 07:30 PM #37
      Quote Originally Posted by dcdude View Post
      "Tune" meaning "software" rather than timing, plugs, points and condenser, right?
      correct
      A Jetta with mods

    3. Member
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      08-20-2010 11:26 PM #38
      '06 Rabbit 5 speed
      87 octane
      suburbs
      23-24 mpg fairly conservative driving

    4. Member richard_rsp's Avatar
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      08-22-2010 12:11 PM #39
      Its amazing how much tire pressure affects these cars. (2010 Golf 2.5, 5-speed)

      I have the 17" Goals and normally run around 37 psi. I usually average about 25mpg around town and 30mpg on long trips.

      I got my oil changed about a month ago and have noticed a decline in my gas mileage. (like averaging 18mpg in town and highway of 25mpg)

      Checked my tire pressure yesterday before I left on a trip and noticed that all four tires had been reduced to about 29.5 psi. (Thanks local VW service dept. obviously they dont realize that with 17" goals, that it is supposed to be at 34 psi!)

      Anyway, now they are back to 37 and I got 34.9 mpg on my trip yesterday (55-65 mph)

      Keep them tires pumped up, especially with the larger, wider tires!

    5. Member thygreyt's Avatar
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      08-22-2010 11:03 PM #40
      i am gettin consistent numbers... 25 city and 28 at hwy (80mph)

    6. 08-23-2010 10:11 PM #41
      I have noticed this as well. Tire pressure makes a significant difference with this car.

    7. Member Schagephonic's Avatar
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      09-01-2010 09:48 AM #42
      Want an instant 10% more MPG? Try to find non-ethenol "enriched" fuel. I found some in Ft. Collins, CO and filled my near-empty tank, reset my Scan-Guage, drove to Denver. Normally I get about 32.5 mpg on this highway run as there's a slight elevation gain. This time I achieved 36.2 mpg. I'll continue to seek out more of these gas stations and do more monitoring of the data.

    8. Junior Member
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      09-02-2010 02:37 PM #43
      I was getting about 24mpg on average with the recommended oil. I switched to 0w-40 and now I get about 25 or 26mpg. Also, I noticed running 91oct or better improves my mpg.

    9. 09-03-2010 08:22 PM #44
      Here's mine

      Pure stock
      87 Octane gasoline

      Best MPG = 46.4 MPG from San Diego to Sacramento
      Longest range = 596 miles/tank

      That was all back when I was doing >90% highway. Now with 50/50 mix driving and shorter trips, it's quite a bit less now. I was hoping to get my lifetime average up to 40 MPG, but that's not going to happen given my current driving situation.

    10. Member
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      09-04-2010 12:26 PM #45
      26 per gallon last fill up around town. I'm not really sacrificing many mpg compared to my 2.0L Jetta with racks (28 winter, 30 summer around town).

    11. Member jtrujillo86's Avatar
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      09-04-2010 04:51 PM #46
      I haven't been too impressed with the 2.5's city MPG. For the last two years in grad school, all I really ever drove were city miles to and from school. Every tank would amount to about 23 miles per gallon. Now, I'm working about 35 minutes away from my house and have a 65 MPH highway drive every day. I'm consistently seeing between 32 and 33 MPG

      - Jeremy.

      EDIT: And all this is on 87 octane. If I use 85 I see about a one mile per gallon drop in both the city and highway.
      Last edited by jtrujillo86; 09-04-2010 at 04:53 PM.
      Quote Originally Posted by BluMagic View Post
      It's a VW; the sensors are as sensitive as women on that time of the month . . . and the dash is as anxious to light up as a stoner.

    12. Junior Member dcdude's Avatar
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      09-05-2010 10:14 AM #47
      My last two city tanks were 20 and 21 MPG. Granted, I still have my foot in it from time to time (hey- it's my new car) but I try to drive and shift between 2,000 and 3,000. My commute is only 7 miles each way, which can't be good, but I wonder if something's wrong? Checked tire pressure recently. I do haul around 2 car seats and a stroller, but that can't be 100 pounds of crap.

      I like the idea of experimenting with 91 octane, but I wonder if it will pay for itself?

      Also considering 0W-40. There is strong suspicion that Porsche specs it to cheat up their CAFE numbers.
      Last edited by dcdude; 09-17-2010 at 02:54 PM.

    13. Member jtrujillo86's Avatar
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      09-05-2010 10:21 AM #48
      Quote Originally Posted by Schagephonic View Post
      Want an instant 10% more MPG? Try to find non-ethenol "enriched" fuel. I found some in Ft. Collins, CO and filled my near-empty tank, reset my Scan-Guage, drove to Denver. Normally I get about 32.5 mpg on this highway run as there's a slight elevation gain. This time I achieved 36.2 mpg. I'll continue to seek out more of these gas stations and do more monitoring of the data.
      I live near Drake and Timberline in Fort Collins, so I'd be interested to hear at which station you found this. Also, ethanol has lower energy content than gasoline, so it's less efficient. I don't doubt you'd see a sizable increase in MPG by using non-enriched gasoline.

      - Jeremy.
      Quote Originally Posted by BluMagic View Post
      It's a VW; the sensors are as sensitive as women on that time of the month . . . and the dash is as anxious to light up as a stoner.

    14. Junior Member NickVW's's Avatar
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      09-07-2010 12:52 PM #49
      My 07 Jetta 2.5 manual
      Average 375-425 a tank winter-summer 87 octane 90% highway
      Highway and city mpg don't vary much for my driving
      Best ever was 33 mpg

      My Fiance's 08 Rabbit 2.5 auto
      Average 325-375 a tank all year round 75% city driving 87 octane

      We took a trip to Florida in the rabbit and averaged somehow 36 mpg on cruise control doing 80 mph on 87 octane

      I think they put pixie dust or something in southern gas

    15. Member VWShocker's Avatar
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      09-07-2010 11:48 PM #50
      Quote Originally Posted by Schagephonic View Post
      Want an instant 10% more MPG? Try to find non-ethenol "enriched" fuel. I found some in Ft. Collins, CO and filled my near-empty tank, reset my Scan-Guage, drove to Denver. Normally I get about 32.5 mpg on this highway run as there's a slight elevation gain. This time I achieved 36.2 mpg. I'll continue to seek out more of these gas stations and do more monitoring of the data.
      I used a whole tank full of gas the other day searching for non-ethanol petrol. No luck except that I was able to score some 101 octane.

      Gonna try it out before the big day.
      A Jetta with mods

    16. Member ShadowWabbit's Avatar
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      09-09-2010 12:34 PM #51


      Mostly city/traffic driving, any highway is usually spirited, 75-85, so my best is 30mpg worst is 19mpg
      Three.8.Werks
      My bagged CC 3.6 VR6 4motion Thread
      @BrunoJS

    17. Member Schagephonic's Avatar
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      09-09-2010 10:07 PM #52
      I've been running eth.-free gas, 87 octane and I'm on my 3rd tank. Set a new record for me at 463 miles for one full tank of fuel! That's a measured avg of 33.4mpg with 80% hwy. Hwy speed avg. was 70-75mph. Several highway stints of 60 to 100 miles were showing 36 to 38 mpg on my guage. The oil company that sells this fuel is Schrader Oil Co. hopefully I can find more stations pumpin this fuel.

    18. Member Cabrio60's Avatar
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      09-10-2010 08:32 AM #53
      You're very lucky, in this part of Wisconsin I'm in, the only way to get ethanol-free is to buy 91+ octane premium (which is 30+ cents more per gallon) and still some stations still put 10% ethanol in that too. In North Dakota, you can buy 87 octane with or without ethanol at just about every station, the ethanol enriched fuel is 8 to 15 cents cheaper per gallon.

      I've been running over 8 tanks of 93 octane Shell V-Power and got 31 mpg or so, 70% hwy and 30% city, so now I will run 8 tanks of 87 octane Shell w/ 10% ethanol in the same driving mix to find the results.

    19. 09-15-2010 11:47 AM #54
      08 rabbit 2 dr 5spd
      Uni stage 1+
      custom cai
      custom cat-back
      Lowered on fk's rears down all the way (with perch) front at 15threads no helper spring
      shaved grill/hood notch bumper notch filled
      Oem audi A3 wheels et. 57
      225 45 17 summer tires
      Premium 93 fuel from Hess gas station

      Only other non driver related variable was that around 100 miles into the test i noticed my rear pass tire was low at about 18 psi. Figures i had a screw in it and got it plugged also i like to keep my windows down, other than that i am at 37psi all around.

      50/50:city-ave. mph 40+- hwy-ave. 70+- (rough estimate of course) "spirited" acceleration every once and a while
      21.8 mpg

      Not disappointed with it that number but with a change in driving style i know i can bring that number up a lot

    20. Member VeloracerMike's Avatar
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      09-16-2010 02:08 PM #55
      09 JSW 5sp 21 combined 80/20 city/hwy.
      09 JSW S/18" VMR 701's/225/40 Hankook V12/Neuspeed JSW Sport Springs/Koni Yellow's/Wolfburg upper/lower grill/R-Line Fogs/De-Badged Rear

    21. 09-22-2010 04:45 PM #56
      Quote Originally Posted by bunnyhopin View Post
      08 rabbit 2 dr 5spd
      Uni stage 1+
      custom cai
      custom cat-back
      Lowered on fk's rears down all the way (with perch) front at 15threads no helper spring
      shaved grill/hood notch bumper notch filled
      Oem audi A3 wheels et. 57
      225 45 17 summer tires
      Premium 93 fuel from Hess gas station

      Only other non driver related variable was that around 100 miles into the test i noticed my rear pass tire was low at about 18 psi. Figures i had a screw in it and got it plugged also i like to keep my windows down, other than that i am at 37psi all around.

      50/50:city-ave. mph 40+- hwy-ave. 70+- (rough estimate of course) "spirited" acceleration every once and a while
      21.8 mpg

      Not disappointed with it that number but with a change in driving style i know i can bring that number up a lot
      Update

      With proper tire pressure and a little more highway driving about 60/40 i got my mpg up to
      25

    22. Member Shawn99/30V's Avatar
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      09-25-2010 09:08 PM #57
      2010 Golf 4 door Tip: 22 city/31 freeway

    23. Member thygreyt's Avatar
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      09-26-2010 09:24 PM #58
      well on the road from H2o i had an average of 37.5 mpgs!!!

      i swear! the gas over there must be better...!!!

    24. Member VeloracerMike's Avatar
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      10-12-2010 10:09 PM #59
      Best tank full yet 22.6mpg combined at 80/20 city/hwy split. Here is the weird thing. I put my racks on at about 1.5 tanks ago...last tank was about 1mpg gain over the complete non rack tank. This tank was all rack and even better mileage. Go figure.
      09 JSW S/18" VMR 701's/225/40 Hankook V12/Neuspeed JSW Sport Springs/Koni Yellow's/Wolfburg upper/lower grill/R-Line Fogs/De-Badged Rear

    25. Member jtrujillo86's Avatar
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      10-13-2010 01:07 PM #60
      Quote Originally Posted by VeloracerMike View Post
      Best tank full yet 22.6mpg combined at 80/20 city/hwy split. Here is the weird thing. I put my racks on at about 1.5 tanks ago...last tank was about 1mpg gain over the complete non rack tank. This tank was all rack and even better mileage. Go figure.
      That's weird you saw a gain in MPG. I can't stand leaving my rack on without carrying something. The wind noise is unbearable and it drops my MPG by about two. It's also not good to leave the feet of the racks on your paint, especially if you don't have the 3M film where the feet meet the roof.

      - Jeremy.
      Quote Originally Posted by BluMagic View Post
      It's a VW; the sensors are as sensitive as women on that time of the month . . . and the dash is as anxious to light up as a stoner.

    26. Member VeloracerMike's Avatar
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      10-13-2010 01:32 PM #61
      Quote Originally Posted by jtrujillo86 View Post
      That's weird you saw a gain in MPG. I can't stand leaving my rack on without carrying something. The wind noise is unbearable and it drops my MPG by about two. It's also not good to leave the feet of the racks on your paint, especially if you don't have the 3M film where the feet meet the roof.

      - Jeremy.
      My racks mount to the factory racks via Yakima Lowriders. Having a wind deflector helps with the noise as well. This is the first stick I've driven since 2004 and that was my Formula Continental so it may just be me getting more used to driving a stick. For the 13 years I drove my 850R wagon it had racks on since about the first week of ownership and I ave about 21.5 combined. But yeah I agree my mileage should have gone down not up.
      09 JSW S/18" VMR 701's/225/40 Hankook V12/Neuspeed JSW Sport Springs/Koni Yellow's/Wolfburg upper/lower grill/R-Line Fogs/De-Badged Rear

    27. 08-08-2012 05:23 PM #62
      My 2010 Golf 2.5 5spd has about 18k miles now...
      I haven't bothered tracking the mileage recently until i noticed my trip ODO showed 367 miles.
      I thought maybe i didn't reset it last time because that would give 31mpg city driving.
      Next tank i verified 377 miles on 12.15 gallons (87 octane).
      This is city driving. I could hardly believe it.
      I guess my techniques are paying off.
      I kill the motor at longer lights sometimes and i decel up to red lights with the car in gear, hardly ever use the brakes. It pisses people off behind me that want to race up to the light, but i stay smooth and steady in traffic.
      I'm also shifting between 1500 and 1800 rpm.
      The commute is 15 miles each way with about 5 to 10 red light stops depending on the time of day.
      Top speeds are only about 50mph, which probably helps.
      I still can't believe I'm breaking 30mpg with the 2.5 gas motor. I think with the 87 octane that's probably more cost effective than diesel for a the TDI. not sure what a diesel would under these same conditions and techniques.

    28. Junior Member dcdude's Avatar
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      08-09-2012 10:48 AM #63
      MK1- Wow! Those numbers are so far from my 22 city MPG that they are almost too good to believe. Does anyone know if the Golf has a weight advantage over the Jetta body? I expect that the 2-door does.

      I guess the big lesson for me here is the reminder to shift earlier. I try for 3,000 but this usually turns into 3,500 However, I don't like the way the car drives below 2,000. I worry about damage from lugging an old air- cooled car, which probably isn't too rational. I guess my new "target" shift point will be 2,500.

    29. 08-09-2012 12:48 PM #64
      yeah, shifting at 1500 you risk lugging a little bit. i just go real light with the throttle to reduce stress.
      i think the real key in city is decel in gear- ECU uses fuel cut strategy on decel. don't shift to neutral to coast- actually burn more fuel that way.
      and like i said- try not to use the brakes, decel early enough to slow to light. i find the light will sometimes cycle again to green and i can stay in 5th and putt through it.
      drivers behind don't like it, but they can pass and accel to the light and wait.
      BTW- i was getting 22-25mpg with "spirited" driving.
      also check your tire pressure. i run 37psi.

    30. Junior Member
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      08-13-2012 07:01 AM #65
      Hey all-

      Was a golf owner for many years- living in DC now, and haven't owned a car at all in 8 years. Recently moved to a part of the city were parking was easier, so i justified getting a car and opted for a used 2007 Rabbit (2 dr auto). I just used my first full tank of gas and got 163 miles total!!! Shocked- that's maybe 12.5 mpg. I'd say the driving was 95% city, but still.

      I will check the tire pressure, but anything else you can suggest? The car has a VW installed roof rack, so I imagine that is affecting the mileage, but online accounts vary as to how much that impacts- anyone have any first hand knowledge with the 2.5L and roof racks? I am trying to get the sucker off, but it has a keyed bolt i have to match. In the meantime, just looking to try and match so of your mileage numbers. Or get anywhere close. If I could I'd be thrilled with my foray back into these great little cars-- as is i'm pretty stressed and perplexed.

      Thanks!

    31. Member alwaysdutch's Avatar
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      08-13-2012 08:30 AM #66
      I drive about 60 miles a day with only 5 miles non-highway, but gas mileage for those miles is about 35MPG average....
      **- 2005.5 VW Jetta Package 2 with 2008 2.5L -**
      BFI stage 2 transmission mounts

    32. 08-13-2012 11:28 AM #67
      12mpg, something's wrong with your car, unless you're idling in traffic for hours at a time.
      brakes dragging, coilpack misfiring, injector stuck open, timing chain skipped, etc..
      do you have check engine light on?

      check your tire pressure, even though i doubt it would cause that much difference.

    33. Junior Member
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      2007 Rabbit 2Dr Silver
      08-13-2012 02:53 PM #68
      thanks. No lights on and a mechanic did a prebuy inspection and everything checked out. But yeah, this does not add up. Will check the tire pressure and remove the roof rack and perhaps have a mechanic check it out again?

    34. 08-30-2012 10:32 AM #69
      recent all highway trip @ 70mph constant, mostly flat driving yielded 29mpg.
      so yes, my city driving returns higher mileage

      this car really needs a 6th gear.

    35. Member thygreyt's Avatar
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      08-30-2012 10:33 AM #70
      Amen. Lol

      Sent from my HTC Sensation 4G using Tapatalk 2

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