What kind of mileage do you get?

[98chevyz71]

with my toneu down I get 16.12

 

[great white]

489 KMs on the trip and hovering just over 1/2 tank right now.


That's all short haul driving too.

Diesels......gotta luv 'em!

 

[magimerlin]

1994 C3500 5.7 4L80 2wd. I try to stay around 60-65, most roads around here are 70 max anyways. I usually get 400-430 miles per a 30 gallon tank. So I average about 14 or so

 

[great white]

1994 C3500 5.7 4L80 2wd. I try to stay around 60-65, most roads around here are 70 max anyways. I usually get 400-430 miles per a 30 gallon tank. So I average about 14 or so

Probably pick up another 2-3 mpg around 55 mph.

People really don't like 55, but its hard to beat when chasing mpg.

Drag and resistance are exponential and start the big hike right around 55.

55 also puts most stock-ish vehicles rigght in their highest efficiency zone.

I know if i drop to 90 kph insyead of 100, i pick up a nice jump in mpg.

 

[5spd Z71]

I lost almost 4mpg going from 55mph to 65mph. My best tank was 18.8mpg, this last tank was 15.0mpg. Even going from 55mph to 60mpg, I dropped to 17.1mpg. It definatly sucks driving 55mph, but better gas mileage in these trucks is always welcome. Especially with these gas prices.

 

[dowsewashere]

18.8 is still absurd to me....

 

[bigfoot9878]

1997 Ext Cab Short Box 2wd 4.3L Vortec with a fresh tuneup. 230,000 miles. NV3500 Transmission. 3.42 LSD in the rear. 235/75 R15 BFG Rugged Terrain. If I run Shell/Mobil/Marathon 87 octan gas I get 17mpg. If I run Wally-world/Speedway/Clark/Admiral I get 14MPG.

 

[glfirefighter144]

last time i filled up the 98 i got 19.?, dad has drove it this past week, so will post mpg when i get back to the site

stats for the truck is 245k miles, 350/4l60, 3.42s G80, lowered 2"/4", 255/70 R15s

and on a more positive note, my Z28 Camaro got 25 1/4 this last time

all of these are with gas advertised as no ethanol

 

[satxwy]

On a 99 Tahoe 4x4 with 3.73s and 265/75s, I got 17.8 on the highway a couple weeks back and this last one was 14.7 with highway (60-70 mph) and quite a bit of idling.

 

[silverado13]

im going to have to take my truck on a road trip sometime to find out, i live literally 2 miles from my job so i dont get the best mileage, maybe 14-15