Sticks n Stones

Post up your real world combined miles per gallon: Before and after mods if you remember! I fully expect you gear box rowers with your extra 2 gears to whip my numbers so don't let me down! Also post up any other LSx vehicle numbers you got.

daily driving my Daily Driver: 75 miles each day, exact same route: 20 miles country driving, 20 miles city, 35 freeway with medium traffic. I only count the mpg from the daily commute: weekend miles of cruising town and hot ******* are usually in the 16-18mpg range but obviously vary wildly.

(MPG readout on my dash has been verified numerous times to be accurate.)
1. Stock I got combined 21mpg:
2. put on my sticky tires it dropped to 19.8mpg:
3. Lingenfelter CAI, SLP421hp Tune and Spintech catback 19.0mpg:
4. changed to Vavaram CAI and 75% 'torque-management-removed' Chris White trans ECU and I got 20mpg:
5. Kooks cat'd Long Tube headers and canned SLP455hp tune: 18mpg.
6. 06monteSS tune 1: 19.5mpg. Tune 2: 18.5mpg Tune 3: coming soon- and this time I'll stop telling him what i 'want' and let him do his job his way.

The gas stations changed over to winter blend gas 1 week after I installed MonteSS's Tune 2: 2nd tune wasn't 'settled' yet, but was promising 19.0-19.5mpg then it dropped to 18.0-18.5mpg right about the time I heard they changed over to winter blend gas... cleaned my dirty air filter last night... also changed from OEM plugs to E3 plugs at the header install which I've heard get worse gas mileage but, according to Hot Rod TV which did a spark plug comparison, give you a few hp at WOT. From now on I'm just gonna stick to stock plugs.

chance575

unk stock
18 city 22 highway with k&n Cold air and spintech
18 city 26 highway with sts turbo kit, no cats
16 city 24 highway with built trans 3000 stall

Sticks n Stones

Thanks Chance! Thats exactly the kind of info I was looking for! The supercharger crowd is getting in the 8 city 14 highway area over at LS1GTO.com forums. Always heard that turbo's are a zero net loss to mileage as long as you keep your foot out of the gas, but suprised to see your highway mileage actually increase! Must be the better tune.

Keep them coming fellas!

codysgto

13city-28freeway

My 04 Goat

382CI H/C/I M6

22.8 on highway
17.1 City if I drive easy so more like 14.5 City LOL

Combined generally 17.5 with more city then highway

JoeyD

iTrader: (20)

Stock LS2 A4 = Avg. 17 city; right at 21.5 hwy.

220/228, 598/598 114 LSA cam, 1 3/4 LTs, SLP Underdrive, 3000 stall, modified stock airbox with K/N replacement filter, misc. other mods = 15 city; 21 highway

LSX 440 stroker motor, big *** cam, ETP heads, TH400, monster stall, etc. etc. = Avg.8.3 city; 13 hwy. Obama has identified it as a GREEN MACHINE

jasonc32amg

Stock m6 w/ FIPK, 21mpg combined with 80% highway.

acurro

On a highway like I-95 for a few hours without traffic I get about 23-24 if I drive conservatively. Around town or on a more crowded local highway about 17-18 mpg. The car is stock except for an after-market exhaust, which I think added 1-2 mpg average on a highway.

Hate to say it, but if you draft a truck (not super close) you can see the mpg rising to 25 or 26.

danieloneil01

waitingfor60mpgguytoshowupandactuallybelievewhathe issaying

Rob Nelson

iTrader: (1)

My car is an 2004 GTO, A4, and I get about 18.5-19mpg. That is 50/50 city/highway.

2004 GTO A4
Corsa Sport catback
K&N CAI

Unstang

iTrader: (26)

My commute is about 10 miles each way, 5 miles stop & go, 45 mph speed limit, 5 miles of freeway around 60-70mph.

224 cam, long tubes w/ no cats, cat back, cai, dyno tuned.

Over the last couple of weeks I'm getting 16-17 mpg.

The last road trip I was on was a 2 hour trip, I got about 26 mpg.

Silver Rocket

i just got back from a road trip and was getting 23 mpg

all ive got is bolt ons and headers

Sticks n Stones

WoW perfect! I've got a cam only a tad bigger than that awaiting a install: and plan on getting either a 3000 or 3200 stall... was afraid my mileage would drop into the low/mid teens and it would become impractical to drive to work when I felt like it (most any day it isn't raining). No guarantees mine will be the same as yours, but something to hope for.
Did a road trip myself: 23.5 at 70-75mph. I was pretty happy!

StealthFormula

iTrader: (35)

Consistency got 16mpg around town in our '06 A4 when stock and also with a tune and Vararam.

Sticks n Stones

Thanks for all the info fellas: seems our cars are pretty consistent at least. YOu wouldn't believe the wildly varying posts I've seen for threads like this one but involving motorcycles or LS1 Fbodies or even third gen Fbodies!

breze84

Not sure but I proabably see 19.5 highway and 12 - 13 street... If I keep it below 2K on the highway I can see 25mpg and on the street I could see 16.5mpg

LSWONGTO

iTrader: (3)

H/C 450rwhp and 430rwtq and hwy is like 22-23 mpg and city is like 14-15 mpg

JonB

iTrader: (3)

I average around 16-17 on my daily commute. I only saw about 18.5 doing about 80mph on a trip to SC and back over the summer which I thought was kinda poor but im sure it would have been much better if I was only doing 65-70.

gametech

iTrader: (1)

I have gotten as good as 27 on a leisurely highway trip, and less than 8 on a "playing around" tank.

JETNITRO

I really can't remember what it was stock,but with heads and cam set up and 3.91 gears with an a-4, I'm getting 17 Highway driving easy@ 65 mph, and about 10-12 city driving as I always do.