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  1. #1
    Active Member Two Rings B8S4inKC's Avatar
    Join Date
    Jul 31 2018
    AZ Member #
    423371
    My Garage
    Lawn Mower
    Location
    Kansas City

    What kind of gas mileage are you seeing before/ after your tune?

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    I was averaging about 23 mpg (mixed driving, mostly highway) before I got the EPL stage 1 tune. After flashing their 93 file (no other significant engine mods) my gas mileage has plummeted to around 17 mpg. I figured my gas mileage would go down a bit, but not that much. My friend that has an APR stage 1 tune averages 25 mpg. Anyone seen similar results?


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  2. #2
    Veteran Member Four Rings cspcrx's Avatar
    Join Date
    Jan 04 2013
    AZ Member #
    106838
    My Garage
    2009 Tacoma, 2007 Harley Softail, 1986 Honda CRX
    Location
    Phoenix, az

    Its your right foot, your just enjoying it more.
    2012 Ibis P+ / DSG / Silk Napa / B&O / Sport Diff. / ADS lite / MMI & Nav / APR Stage 2+ & TCU Tuned / Ultra Charger / 184mm KI LIL BITCH / ECS Kohlefaser Luft-Technik Intake / AMS Alpha Cooler / ECS 2-Piece Rotors / Akebono Pads / VMR 803 19x9.5 ET45 265-35-19 PSS / ECS Drivetrain Bushing Inserts / CR-15

    12.3 @ 112mph 2288DA on 93oct file Stage 2

    THEN THEN THEN Rinse & Repeat!

  3. #3
    Senior Member Three Rings Rodizzle's Avatar
    Join Date
    Jun 17 2015
    AZ Member #
    337928
    Location
    Bayarea

    19-20 to 9.5MPG


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    2014 S4 IE E40 Stage 2+ & TCU 11.32@119.98

  4. #4
    Established Member Two Rings
    Join Date
    Mar 05 2014
    AZ Member #
    151264
    My Garage
    2016 Audi S4 & 2015 Audi Q5 TDI
    Location
    PDX

    GIAC STG2. Have always been around 18.5-19.5 MPG.

    Unless I go on long freeway drives and it cruises up.
    2016 S4 | DSG | Monsoon | 35% TINT | 3M BRA | AWE TUNING STG 2 PKG | GIAC DSG TUNE | PSS10 COILS | EUROCODE F/R SWAY BARS | ECS LUFT-TECHNIK | EUROCODE F/R ENDLINKS | EUROCODE ALU-KREUZ | EUROCODE TRANS MOUNTS | AWE TOURING W/102MM SILVER POLISHED TIPS | ZIZA FULL LED | ZIZA REAR/TURN LED

    2015 Q5 | Lava | 35% TINT | 3M BRA |

  5. #5
    Senior Member Three Rings seandon_792's Avatar
    Join Date
    Aug 12 2015
    AZ Member #
    348456
    Location
    Waldorf, MD, US

    I got about the same before and after the tune. Maybe a smidge better mpgs post tune.


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  6. #6
    Senior Member Three Rings
    Join Date
    Mar 28 2016
    AZ Member #
    370916
    Location
    NY

    Don't forget that in many areas of the country we are switching to winter blend gas. You lose 2-3 MPGs there. Maybe just coincidental timing.

  7. #7
    Senior Member Two Rings
    Join Date
    May 06 2015
    AZ Member #
    331368
    Location
    Minnesota

    EPL stage 1 here. No change in mileage after I tuned.
    2013 Estoril Blue S4 | DSG | Carbon Inlays | Sport Diff | B&O | Black Nappa | 3M Clear Bra | 50% tint | Deval Diffuser | Lamin-x tail light tint | AWE touring + res downpipes | Bilstein B12 pro kit | AWE intake

    2014 SQ5 (wife's ride)

  8. #8
    Established Member Two Rings Jimcoily's Avatar
    Join Date
    Apr 06 2017
    AZ Member #
    397219
    Location
    Port Orchard, WA

    I'm too lazy to do math but I had 264 miles when the gas light came on. APR UC

  9. #9
    Veteran Member Three Rings Joker S4's Avatar
    Join Date
    Jun 21 2014
    AZ Member #
    257065
    Location
    Virginia Beach

    Most likely the "right foot" being used more. It's much more fun. When I drive responsibly, my MPG is about the same pre-tune. I'm UC'd now and get get 10-12 MPG if I'm having a really good time.

    +1 for the winter blended gas as well.
    | 2012 S4 Prestige | TI Black Optics | Monsoon Gray Metallic | Black/Magma | STUFF | TD1

  10. #10
    Established Member Two Rings
    Join Date
    Apr 16 2017
    AZ Member #
    397834
    Location
    Illinois

    With a heavy foot with my current setup running the 91 octane Stage 1 tune, I saw about 20mpg.
    With that same heavy foot on E20 and running the Stage 2 tune, I am seeing about 17-18mpg.
    2012 Ice Silver S4 | DSG | Prestige | Unitronic Stage 2 | 187mm Fluidampr | AWE Touring | Eurocode Sways | 034 Insert | CR-15 | Forge Charge Cooler | ECS Carbon Intake | Fuellabs Inline Filter

  11. #11
    Senior Member Three Rings
    Join Date
    Mar 28 2016
    AZ Member #
    370916
    Location
    NY

    Quote Originally Posted by Bartlett View Post
    With a heavy foot with my current setup running the 91 octane Stage 1 tune, I saw about 20mpg.
    With that same heavy foot on E20 and running the Stage 2 tune, I am seeing about 17-18mpg.
    That makes sense. Less energy in ethanol, so the more of that you run the worse your mileage.

  12. #12
    Active Member Two Rings
    Join Date
    Jun 04 2018
    AZ Member #
    420012
    Location
    Orange County, California

    With APR Stage 1, I was averaging about 24
    APR Stage 2 DP Iím averaging about 26

    I drive mostly hwy

  13. #13
    Veteran Member Four Rings sacandagaD's Avatar
    Join Date
    Jul 02 2013
    AZ Member #
    118210
    My Garage
    2015 S4 P+, 2005 Honda Element,2018 Porsche Macan GTS
    Location
    Saratoga Springs, NY

    Quote Originally Posted by hilmar2k View Post
    Don't forget that in many areas of the country we are switching to winter blend gas. You lose 2-3 MPGs there. Maybe just coincidental timing.
    I swear I lose more like 4-5 mpg with winter gas here in NE.
    2015 P+, Sepang Blue, Black/Black Alcantara, Tech package, Sport Diff, DSG, Carbon inlays, B&O, Hard wired V1, CR-15, 3M film, 19" PSS/Hartmann Rotor reps, Akebonos, LED interior and reverse lights, ZxE fogs, CW Pro, Soundakator mute, RS Rep grille.

    Loved but traded: 2011 S4 P+, Deep Sea Blue Metallic, Black/Silver Alcantara

  14. #14
    Senior Member Three Rings Corradobrit's Avatar
    Join Date
    Oct 27 2007
    AZ Member #
    22138
    Location
    TX

    Giac Stg1. Seeing about 10% better fuel economy post tune. Pretty much same driving style, route. 99% time drive on manual (S/M) setting
    2014 S4 Premium Plus, Glacier White Metallic, Black Optics, DSG, sport diff, Nappa, B&O, AWE Touring/Res DP, GIAC ECU/TCU Stage 1, ECS CF rear diffuser, CR15

  15. #15
    Veteran Member Three Rings
    Join Date
    Oct 30 2012
    AZ Member #
    103197
    Location
    Oxford, MS

    Quite a bit worse but I'm having so much fun.

  16. #16
    Active Member Two Rings
    Join Date
    Sep 20 2018
    AZ Member #
    427191
    Location
    Plumsteadville, PA

    Bought car Stage II+ so I donít know stock at all but I can average anywhere from 12-27mpg on my entirely backroad drive to work 20 miles.

    Entirely dependent on your driving habits and available open roads to smash that gas.

    Had the car for two months and never been on the highway at all so I have nothing to compare there.

  17. #17
    Veteran Member Four Rings Charles's Avatar
    Join Date
    Sep 15 2006
    AZ Member #
    11371
    Location
    Jacksonville

    Kinda shitty before. Slightly shittier after.
    2013 S4

  18. #18
    Active Member One Ring Atrevido's Avatar
    Join Date
    Mar 19 2018
    AZ Member #
    415738
    Location
    Florida

    Typically around 20 MPG, but I recently took a road trip down to Key West where the speed limit is between 45-55 MPH, and this must've been the sweet spot!
    I had no idea I'd ever come close to 32 MPG.

    20181027_143906.jpg

    As others have wisely noted what really matters is how much your right foot comes into play. I try to behave . . . whenever possible . . . which is not often.
    2013 S4 / 6MT / Phantom Black / APR Stage II Single Pulley / Sports Diff / RS4 Grille / K&N / Modded Air Box / 6K LED Fogs / LED Reverse Lights / Michelin Pilot Sport 4S / Hard-wired Valentine V1

  19. #19
    Veteran Member Four Rings jimrobbington's Avatar
    Join Date
    Dec 03 2008
    AZ Member #
    35950
    My Garage
    2014 Forester XT, lawn mower
    Location
    Castle Rock, Colorado

    I can still get about the same mpg on dual pulley as I did stock. I can get worse if I try lol. It's all in the way you drive.

    If anything, I would think you could get better mpg after a tune, IF you can keep your foot off the pedal. It's just too tempting not to.

    Sent from my SM-G965U using Tapatalk
    2012 Audi S4 Prestige 6 speed, 034 Stage 2, 034 SC pulley, JHM 179mm Crank, USP Intake, custom x-pipe exhaust, 034 Trans Mount Insert, 034 Front/Rear Diff Mount Inserts, JHM Stage 3 clutch, JHM LWFW, USP SS clutch line, 034 boost tap, Podi boost gauge

  20. #20
    Established Member Two Rings
    Join Date
    Mar 12 2014
    AZ Member #
    154981
    Location
    Atlanta

    I commute ELP stg 2 and TCU tune. 300 miles per tank every week. Works out around 21 or 22 MPG based on my fuzzy math.
    Last edited by cbnat; 11-10-2018 at 07:31 AM.
    Estoril Blue 2013 S4 / EPL Stage II / EPL TCU Tune / ECS Kohlelaser Luft-Technik Intake / ECS Wheel Spacer Flush Kit / CR-15 Upper Strut Tower Brace

  21. #21
    Veteran Member Four Rings
    Join Date
    Apr 05 2009
    AZ Member #
    40781
    My Garage
    1984 Audi 4000S Quattro, 1989 Toyota MR2 SC, 1960 Alfa Spider
    Location
    SF BayArea

    in the SF bay Area, none of my cars ever got great gas mileage. combination of my driving style, plus the hilly terrain, traffic, & our low density fuel. My stage 1 EPL car with 3 to 4 gallons E85 averages about 17 to 18, gets mid 20's on a full highway trip. got the same with my B5 and B6 A4 with a ton less power. don't think the tune affected it much, except for now I run the E85 mixed in, which lowers it a MPG or 2

    only way to get good mileage around here is with a hybrid or normally aspirated lightweight car.

  22. #22
    Active Member Two Rings B8S4inKC's Avatar
    Join Date
    Jul 31 2018
    AZ Member #
    423371
    My Garage
    Lawn Mower
    Location
    Kansas City

    Image1541804895.920481.jpg

    Thanks for all the replies. Guess Iíll have to try and see what I could get on a full tank driving conservative the entire time. Even though itís real hard to do. Iíve only done about 3 pulls hard pulls on this tank. MMI says Iíve got 80 miles to empty so that math gets about 17 mpg. Just figured it would be better.

    Also was curious if EPL tunes result in worse gas mileage than others but I guess it seems consistent.


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  23. #23
    Active Member Two Rings Jk79's Avatar
    Join Date
    Sep 20 2018
    AZ Member #
    427217
    Location
    Chicago

    Usually you should see an increase in gas mileage from a tune. These cars run pretty rich from the factory and the tune should lean out the mixture a bit. On a full tank I used to see an estimated 340 miles but after the tune it shows 370. Minimal increase for sure but an increase none the less. I canít say Iíve been getting that as I do tend to push it a bit. I mean, thatís why the S4 with a tune is fun. Thereís always a stretch of road worthy of a quick pull to keep the commute fun : )
    2014 Audi S4, Stage 1 ECU Tune, AWE Touring Exhaust, Ceramic Coating, RS4 Quattro grille, ECS Carbon Fiber diffuser, RS7 Wheels



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