Average Gas Mileage Poll

[MarkD]

Please post your vehicles configuration with mileage after response.  Is your truck stock?  Comments?  What made the biggest improvement?

[silverado man]

Truck specs are in sig, and I usually run about 13 city and 17.5 highway.

[Texas Z]

I have a 02 Z71 Ext. Cab with 285's AT tires, my average is 13.6 city with stop and go traffic (Houston) and highway around 17.  I haven't done any other mods.

[melbertbloosfan]

2WD + .342 gears + 4 sheriff's laying for me on my commute = 18.67 mpg last tank.

[MarkD]

I am getting 16.6-16.7 with the following relevant mods:

 

Stock Firestones

Ford Keys

K&N FIPK

HPP3 w/87 octane power tuning

Mobil 1 5W-30 Synthetic

 

This is average per tank and average since new.  I can't really classify my driving as city/hwy.  In my typical week, I drive about 300-350 miles/week with 100-150 being stop and go (1-2 miles or so between lights), 175 being 17 miles to/from work at 60 mph, few stops, and 0-75 being highway (65-85 mph).

[JoeChevy]

My 2002 LT with 3500 miles has just deliver 17.5 MPG on a trip

to yosemite. I guess you would call that highway, but I did go up

to 8000 feet from sealevel with AC runninng and the windy Tioga

Pass..... :thumb:

[rrsob]

I get approx. 14 city. Don't do much highway. All stock 5.3

4wd exd.cab. Of course this was before I went from stock 265's to 285's.  

[AU Chevy]

01 2WD Ext cab 5.3L 3.42 rearend, the fiberglass cargo cover helping is debatable.

Average 18.5

17 city

20 Freeway 75-80MPH

[nonstop]

I had to null my vote, you don't have a 4.8 poll up

 

Anyways I get about 17 highway.

[jst4f]

K1500, 5.3L, 4.1 rearend, 7100 miles, AMSOIL syn oil and air filter.  I got between 18 and 20 MPG on the highway on Labor Day weekend doing 75 to 80 MPH up and down hills.  My average also includes the first couple of tanks which were pretty bad with a low of 11.5 MPG.

[RyanbabZ71]

avg is about 12

 

Best was 18 going through the mts in NC.  

 

5.3 3.73 mobil 1 stock engine 285s

[MarkD]

Ryan,

 

You are in Charlotte, NC aren't you????

 

12 is AMAZING for that traffic!

[RyanbabZ71]

nope _ indiana

[warhig]

13 local/18 highway. All stock 5.3 3.73 4wd

[MountaineerTom]

You know, I really don't know.  I havn't checked it in a LONG time.  I know I jsut fill 'er up every payday.     I also know I can make it to my mom and dad's house, which is around 350-360 miles away, on a tank of gas.  Usually about 1/8 of a tank or less.  That's running about 2/3's of it on I-77 at 70-75 MPH.  Once I get int eh mountains, you can almost see the gas gauge drop.  

 

Oh yeah...

285/75/16's,

3 inch body lift,

K&N FIPK,

Flowmaster 40 series muffler,

3.73 gears