whens the last time u changed your fuel filter???

 

Around 15 mpg in the city and 19 mpg on the highway. I usually average 16-17 mpg.

 

17-18 city and 20hwy. Most tanks are a flat 18mpg.

 

 

I have a pretty accurate evaluation of my MPG. I keep a written record of my mileage and heres what I have so far.

I have a 2000 GMC RCSB Z-71 with the 5.3 no cats, ultraflow bullet muffler, superchips tune on performance mode and a K&n filter and 4.10 gears.

I drive pretty much 50% highway and 50% city
I drive with a pretty soft foot most of the time.
Went to the exact gas staton, exact pump about 90% of the time.

started 2-19-04 to 10-17-04
Ran up a bill of $1,383.48
Driven 11,429 miles
Sucked down 718.772 Gallons
Total= 15.90 MPG


Best I've gotten on a tank 18.18 MPG
Worst I've gotten 14.28
I did notice when I put the K&n and the exhaust on I gained a consistant 1.5+ mpg.

The main reason I'm doing is to see what the aftermarket parts actually do especially since they all talk up how much MPG you gain.

Hope this helps

 

4.8L '00 Sierra 4x4, RCSB, auto, 3.73 with stock wheel/tire
Volant CAI w/Ram air, Magnaflow w/single 3" outlet, 93 octane

Average 15.3 with mixed driving and a few aggressive launches.

 

I got 21 - truck was brand new - cruise set at 65
Last trip 19.9 - cruise set at 75 - with current mods

 

16.6 to 17.7 w/ mods listed below driving a 140 mile round trip everyday back and forth to work on lots of two lane blacktops...Zed

 

I have an 04 Silverado ECSB 4X4 with a 5.3 and 3.73's. Fully loaded and all stock with 4500 miles. I'm getting 13 - 14 around town and 16 - 17 on the highway.

 

14 HWY and 11-12 city.....dman lead foot