I'm still on my first tank of gas:

04 Dodge 1500 Quad Cab 3.7L 5 speed 2wd 3.92 axle, on 245/70R17

Will report once have some stats. Have looked, but found no detailed forum on people's mpg.

1st tank: 16.2 in mostly city driving.

01 Toyota Tundra. 4.7 v8, 4x4, access cab, 4.10, auto, 265/75 michelin LTX A/T @42 psi each
Pure city 15.0-15.5 mpg.
With offroad (in 4low) 14.0
No highway for long enough to effect values

2nd tank 17.1, mostly highway. Third tank 16.1, but I was letting it run a bit for breakin.

1974 Chevy 3/4 ton
4x4
Bored/Stroked 454
5.71 ring/pinion gears
44x18.50x15 tires (20 psi on road)

5-6 mpg on a good day (on the street)
Off-road...I don't even want to think of the fuel mileage there!!

^ wow I thought I had bad fuel mileage!
93 Lightning 12 city 15 highway
Maybe about 9mpg with me driving.

F-250 crew cab long bed 4wd 6.0l 5spd auto 3.73 axle 235/85R16

14 city 19 highway

Expedition 2wd 4.6l 4spd auto 255/75R16

21.4 on highway doing 70Mhp I'm not sure in the city.

Both are broken in.

i got a 2000 sierra with 5.3 liter with 3.73 rear, an intake, throttle body, and performance maf sensor. My best highway was 21mpg, on the street its usually about 14.5 or so.

I just sat down and did an average for the last 10 refuelings and i am getting 14 mpg city/hwy combined. My highest single fuel up mileage was 19 mpg city/hwy combined. I am guessing but it should probably get mid to high 20's strictly on the hwy. Not to bad i think considering the oversized tires and a heavy size 13 :biggrin:

Gear ratio 3:73
Tire size 255/85/16 (33.3" tall when new)

9 mpg

Blazer gets about 16 city, 18 Highway lol

Silverado gets about 17 City, 20 Highway

1989 GMC Suburban R1500 5.7L
i get on average 23 mpg believe it or not but i overhauled the engine replaced the TBI with Direct port, replaced ignition module with an MSD system
you know the usual. but not only that but i have a weight reduction system, i only have half the body the rest is rust holes

Got '83 T-10 4x4 2.8 700r4 235/75-15 about 15 highway with wind behind me and around 11-12 in town
now my wifes '97 GA GT 16-18 in town and about 24 highway

93 S-10 4.3L 4spd. w/ OD gets:
26 MPG @ 55MPH
20 MPG @ 110MPH
16 MPG city

86 K-20 5.7L 3spd. gets about 10-12 MPG everywhere. I've never had it at high speeds long enough to see the mileage when the 4-barels open up, but I think it would be measured in gallons per mile then. I used 3/4 of one tank (roughly 15 gallons) going about 10 miles at full throttle. I know that doesn't seem possible, but unless there was a one time guage malfunction, it happened. It's just a good thing I got dual tanks on it.

2001 Yukon XL K2500 (3/4 ton) 6.0 liter engine 4.10 rear
14 mpg hiway 10 mpg city 7 mpg towing a 10,000 lbs camper
Take care, Eggert :bananasmi

98 Tahoe 6.5TD 4WD gets 22 mpg highway/15 city.
86 Suburban 6.2NA 2WD gets 26 highway/17 city.

about 13 mpg city
17? mpg highway

1996 Ford 150 4.9L I-6 with default rims.tires and decent driving

93 S-10 4.3L 4spd. w/ OD gets:
26 MPG @ 55MPH
20 MPG @ 110MPH
16 MPG city

86 K-20 5.7L 3spd. gets about 10-12 MPG everywhere. I've never had it at high speeds long enough to see the mileage when the 4-barels open up, but I think it would be measured in gallons per mile then. I used 3/4 of one tank (roughly 15 gallons) going about 10 miles at full throttle. I know that doesn't seem possible, but unless there was a one time guage malfunction, it happened. It's just a good thing I got dual tanks on it.

J-Ri, How would you posibly know your mileage at 110MPH?
I'm sure that no one on this forum would ever drive exsesive speeds!

I had a Ford 1/2 ton that got a simular mileage when I booted on it.
I sure didn't complain much when it got stolen

J-Ri, How would you posibly know your mileage at 110MPH?
I'm sure that no one on this forum would ever drive exsesive speeds!

I had to make a long drive, and din't have much time to get there... plus I had my CB on 19 listening for bear traps, and traffic in the SLOW lane was going probably 90 except for the occasional RV... those were some sudden bottlenecks :eek7:

I do have an update for both trucks. My Silverado is now getting close to 15 (acetone added to gas), and my S-10 is getting ~25 city and as high as 30.09 highway (65mph going up and down rolling hills). I'll add acetone to that and see if I can get it to 35.

At 15000 miles, my 04 Dodge V6 5 speed is getting 21.5mpg hwy if I take it easy, and about 20.3 at 70-75mph highway.

city is running about 17.5.

1989 Ford F-150 4.9 I-6 2WD gets about 15 city/17 highway :disappoin

1989 Ford F-150 4.9 I-6 2WD gets about 15 city/17 highway :disappoin
My girlfriends 92 gets about 25mpg with the same FI motor, and 5 speed
I got 30+ mpg with my old 63 Ford 1/2 ton with the optinal 262 I-6 motor, with the 3 speed manual transmission. (in the U.S. this motor was comercial only)
I rarely see city driving, so I don't know what those trucks get in town

16 mpg with 37s in a 1991 toyota with a 22re

Drew

I have a 2000 Silverado Z71 w/ 5.3, 3.73 gears 143Kmiles

I average about 14-15 city and about 17-18mpg hwy.
I have no muffler and a K&N Gernation II Air-intake system and Bosch Platinum +4 plugs

lol before i took my truck apart to restore it, a 73 chevy c-10, i had a 350 that ran on 7 cylinders and it got a whopping 11 mpg in the city lmao

I have a 166 mph truck that gets about 7-8 mpg on propane. That's why it's for sale,,,,

I have a 166 mph truck that gets about 7-8 mpg on propane. That's why it's for sale,,,,

Propane? did you do a conversion or something?

Yes, tank, carb, converter and such.

out of curiosity.. y did you convert?

I used to get cheap fuel and was more of a "project" (not into those kind of projects anymore)