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Go Back   TheDieselPage.com Forums > 2001-2019 Chevrolet & GMC 2500HD/3500 Light Trucks > Duramax 6600 > 2004.5+ LLY Duramax Fuel Economy Poll
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Duramax 6600 Welcome to the Internet's first Duramax 6600 diesel discussion forum for the LB7, LLY, LBZ, LMM, LML, LGH & L5P RPO code engines. Tips on performance, fuel economy, troubleshooting and more.

View Poll Results: 2004.5 or newer LLY Duramax local driving fuel economy
less than 15 mpg (US gallons) (55-65-mph)
118Racing, 1949gmc, 2500HDave, 6tvair, ahg2005, AKMark, al8apex, Alpaca Hauler, Ardie, asm, Avmech, B. Lane, bart1978, bdewett, Big T, bigwavedave, BigWhitey, billmax, brianmoberg, BTD, Bunkboy, Capt. Tom, captain231, carl, ceciii, chadc30, chevyD2005, chiefnelson, chipman, Chris Curran, chris duncan, cliffg, CNF, CntrlCalDmax, coach, cowcad, cowdoc, cptxguys, Curt B., Dan, Dannyboy, davg, deansgoose, delsol, Dickie, diegojp, Diesel 4me, Diesel Freak, dmax lover, dmaxpwr, doogiecab, DrBob, driller37, eng50, epick, fccxmtr, ff6848, Fire Ball, Fishman95129, Freeman777, Frog_Legs, garyrey, gimpyhauler, GL, Glenn Pickard, gmcbman, GMP-23, gordone, gritt, hitman, Hunnington, ifishinxs, iljusin, j43w60, James T. Little, jaoder, jean2005, jhole, Jimmy Dmax, Jim_bo, jmarraccini, JON MARSHALL, jwag, jwlbal, jwork, k1rod, KBAUM-03, kbrowns, Keith Thurston, kglenn, kingkong, klm2500hd, KompressorMan, KWComp, kwestov, Lawn Pride, Lee_klm, Les Tucker, louie992, ltrip, macbrubaker, Mark H, MAXImiser, maytagman, mike.morris, Mile Hi Guy, moto x, MrBobcat, mulerose, my05, ngsnow, Noal, nrs, Nut4Trucks, pak, Pancake, papa653, PCF, PDOUGLAS, pineyrooter, Pipeman, polar, Polinox, pollolittle, Powerstroke73_2_Duramax66, QuadHauler, Randy Russell, rcone197, rd83, rdd, RdTxTd, REDTRUCK05, reedpilot, rescue7, rgsla3333, rhino, Rhynno, RipCord, riverchucky, riverrunner, rjoplin, rjracer, Robabner, robt, RodneyRam-jet, Roger 1, Rowdy, royalglen, rps, rrd, Ryster, Samjd3, SatchMax, saxman58, scottdiesel, shelbytt, Shoe, shotgun, Skytop49, SLT556, spaceguy, staticweld, Steve Rapp, Stevenj, Stlheadake, stlspoon, stockho, STPETEBLUE, Stretford, Sunrunner, swilk427, swittek, TATUZINHO, TDiesel, Test Road Builder, Thunderhead7, Tom Liddicoet, Tom Thordson, tombyo3, TOMS 05 GMC SLT CREW 4X4, TowingMaster, tricky, ttrew, turbo lcc, TURK, turpin76, unclechevy66ss, USA-1, V65_MAGNA, Wade7, Washman, webrider, wintergreen65, wmholden, Wont Goof Again, wrsjorel, WYOBRI, YBM, yukondmax, zukfreak, zxgates
454 41.58%
15-16 mpg
05DMAXX, 05lly, 1snake1, 2fast4u, 4WDCCTD, 5.0 Hauler, 50+, 6.6Turbo, adamsclimber, alpo, Andy 2005 GMC, bgaiche, Biggin, Bill 3, BillyD, Black95TD, blazaro5, bobwilson644, bookumdano, BradW, briane, browntrout, Bugsy, ccdm, chevywolf, citizens, cj, ckt, CNSteve, conejo, crazy, d11595, daleo, Dan Herr, DaveMcClain, davey jones, david, DBZ, DCarr, Deansel, dfenze, Diesel Burner, Dino, DJ-IL, DMAN, dodgerfan, donaldg, Doug Darby, Doug525388, dtumilty, Dusty1, eagle in flight, ec1957, emerick115, farmboysteve, Finman, fivenite, Fred66, GaryC, gary_lucas, GMC CCKW, GMC_From _Texas, Grizz88, Gruffid, guerrero, haysr, Heatair, HUNTER1, idoc, Impala driver 2, jaymeangreen, Jim Dandy, Jim Glenn, Jim_Cooney, JMH712, jnewsome16, JPayne6128, kantra, KDB67, Kelly T, Ken05Dmax, Ken863, kjoney, kthorn, Kuhlbrz, ldtolliver, Little Tommy, lobo6403, LouM, lpaulcarter, lunch04, LyleP, Marcus Franco, Mark Rinker, Mark-, mark45678, matusik3, maynard9089, MBII, mbowerma, mjfarms, Mountainman, MylesD, OB1KUBOTA, Ol' Bill, Oldhoss, oldtractors, OlHippy, paul273, pepper, PTW, RADAR, Ranch55, randypollard, Ranger354, rapidoxidationman, rarejag, rasac, rdev, redeye, Redryder, rgordonfan, Rhoward225, Rockhead, rstablepfarm, sabercatt, sabot1, samjellison, Scot_Robins, SEA04DMAX, sheraz7, Shire Ben, sierraken, sjhsjc, skark_burmer, slvrmax, smoki, SS454, Texasdeere, TexPat, the_vfox, thompj, Tim-T2, Tow Go 2, tractman, turbo6600, turbosixgn, vaicase, VEETWIN, watersampler, whelenracing, woodgriz, xcpolaris
163 14.93%
17-18 mpg 165 15.11%
19-20 or more mpg
-459f, 01max, 02bymorris, 02outlaw, 1BADDMAX, 220rocket, 2500, 26wonderer5r, 2YD, 65turboman, 717Jock, 84jeepjohn, 99 2500, aa05, ADub, Alan Lutz, Allison Jettester, almo, Andy Lateer, ArDmax, arknsparc, ARKY, Arnie, AustralianLad, azhuntnut, a_rod, bagall, bamabadboy, Bambad7, Barkbuster, bcarson, BCB, BenW, BertramBoy, BIG FT/LBS, Big Yellow, BigBob, BigDiesel, BIGJEFFSCV, BigShips, bigski, Bill Knieper, Blade, bnmccoy, BobH., BobW, Bowties4Life, bphxmds, Braidy, brentr69, brianjones, Brush Head, BurnettFarms, BurnsK, buster60, BVOYLES, bwr, C5Hardtop, cabletech, Camstyn, CanadaKev, Capt. Steve, CAPTAIN CALIBRATOR, cat13, caveman4867, cbAlaska, cbird07, cdh67, chetp, chevy13, ChevyMan, ChrisF, ChrisR., Chuck1, chuck1008, cjacques, cjbear100usa, clammer, Clarke F, cmadmaxman, ColoradoBoz, Commuter Cop, concours, Corwin, countrym, CoyleJR, cr8gster1, cscott97, CUDDY007, D-Con, D-MAX, D-max Man, Dakota, DarylB, dav13, Dave Walker, dcalex, Dek Hawkins, delb21, DEMAXALLIS, DennisC, Dewey Faircloth, Dewjeepcj5, dieselluver, DIESELMAX403, dieselrealtor, DieselsRule, DigDug, Dihrdbowti, Djack, djhuff, DmaxCC6spd, DMAXdreamin, DmaxMaverick, DMAXN, dmaxoj, DMaxQRV, DocsRoper, drwoodchopper, dspencer, dudley02, dunhamg, DUNK, DuramaxDave, duramaximizer, durantdiesel, DURCC06, dvmpete, Dylan Finch, Eagle Eye, ebwelder, emerald, epp, erie_one, ernest2, EXPSD, Falconsprint, Falk781, FARMERBOB, farmerdan, farmertracks, Fastcarrs, Fat Boy, Fathead, featherlight, FireMedic, FLEETMANSPH, flyingbassplayer, fun250tb, garysr, gbeaird, germ1, GGrd, glh05, GMC Driver, gmc sierra, gmcdan, GMCfourX4, gmdieseldan, gomulka, gonebiken, gopokes, gozierdt, gparrish, gpsalazar4, gray1, Grayfox, gtncl, gus weber, handgun, Hardin, harry320, HarrySanders, Header, HerbColeman, HighMiles, Hillbilly Jim, hohl, hunter40, icemike16, Idahobidcaller, indiana jeff, J TOMAN, Jake Whitehorse, jalanzrr, jallen, James S, JasonS, Jawa, jbrooks86, JD Moshier, jd788, JD_Doctor, jeb, JeepSJ, Jeff McClain, jeff1216, jet, jfish, jharden1, JimEd, JimmyMax, JIMMYnewdiesel, JJ in OH, JLY, Joe.G, John3, Jorday, jschuld, justy330, jw461, jwb187, Kabin, Kachina, Karl, Karl13, katjo, kl2657, klintdog, KrisHull, kubota, lamgar, Lawnboy, lbarnard, LeroyR, LETHL, lightisright, Lincoln 195, LittleBigRig, lled, LoClass, longgun, lucky larryl, macgoo, maddogjim, magma-joe, Mark Meyers, mark.iv, Marshall, MartyB, mattlewis, max out, maxdout, Maxdout1, maxhikker, maxtotow, Mech III, Merconvert, MIKE MOG, MikeChase, MikeT, Mike_N, mishkaya, mitjj, mjammer, mkilmer402, MohawkMax, Monster_O, moose, More Power, morg1, MPR, mrrev, MT BUICKNUT, MustangMike, n3qik, n5lfh, nate5566, newdiesel, niemo, NJDMAX, NobleDMAX, Ofbmicsafety, OldBinger, OldNoLB7, Ole S. Birkland, onesloryd, OrionDiesel, Paintdude, patandcathy, Phil Holmen, philip, pkent, Posm, powerstar23, pudge, Quack_Addict, qwertyqwerty, Radguy, RayFong, rbward, rdlit, rdmax, real_texan, red sled, red19711, red3171, reelscreamer, regrus, Rene O, rfish, river918, rjkas, RMKrider, Rock, Ronald Baxter, ronald2707, rosens5, RustyJim, sanberdoo23, SaShot, sboy74, scduramax, Scrambler, sdaver, seabee14, SF Jakey, Sharkey, Showgood1, shrimper4, SIde, silke, silverado, sjlinto, sjl_dmax, Skeeter49, skyflyer, sledhed, sloth501, sluggerjoe, SMKN TA 95, smosier, SnowBandit, Snowbound98, Snowplow, someday, soot, spark, srfarr, SSDIESEL, SSWEBARRICK, StanH, stc, steamman, Stove, SUNBUM32, SuperDave, sutick, svpdiesel, Swayse, T HAUS6955, taildragger, tallpaul00, tapengl, Texas Rattlesnake, thartman, Thomas Abernethy, ThunderMax, Timberwolf, titanite, tmactruck, tng, tnlegendracer, TNSuperDuty, TOAD2, ToddMeister, tomking, Tommy turbo, Tractorhauler, Trae, Troy, Truck Specialties, truckin, trucks, trucks5, trump5, TUBE KING, turbowind, twister11, TXAtty, u25mi82, ufga025, ulhpilot, Urban Suburban, vagabondjpm, VANBC2500HDDA, VANDAL 7, Vaquerito, VA_Dmax, verned, vernj4, vetman, Vette Racer, ViperSmitty, VT_mountain_man, Wally R, watchmaker, wgroat2, whatintarnation, Wildbillnc, Willcoc, wind dog, WinniDave, WMB, woodwhttler, wormburner1941, wrace, XTeam524, yankee, yorkje, ZanMan, ZDPDVM, zee_oh_six
220 20.15%
Don't own an LLY - just wanted to see poll data 90 8.24%
Voters: 1092.


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