1996 vortec 5.7l gas mileage

[Emanuel]

Has your speedo been corrected for tire size? That will throw off your odometer as well.

1 mile off maybe I run 3.73 gears and with 33s I need 3.84 gears or something like that

 

[flenniken7]

My 96 gets about 15 with mixed city and the occasional trip to the lake pulling the boat. On trips im averaging about 18.2 - 18.5 no trailer and about 16 pulling my boat. I have been impressed with that kind of MPG out of my 225K + mile truck but with all honesty that with me being very particular how I drive and trying hard to get good MPG. HWY im running about 69 to keep the rpms under the 2K mark

 

[Bondovw]

My best ever highway was 17 to 18 MPG I have a 96 4x4 extra cab longbed 5 speed with 4 inch lift and 35s

 

[OutlawDrifter]

My '98 Z71 averages 15-15.5 daily driving and I have seen 17.9mpg running 78mph on the interstate. I'm on stock diameter tires, 3.73 gears, upgraded spider, fresh tune-up, and a Dynomax Ultraflow muffler.

 

[mistaake]

mixed driving my 99 suburban 5.7 gets 12mpg consistently. if i do literally all highway no stop-and-go traffic i get 14mpg. it's not a prius :/

 

[jollyjerry]

14.7 MPG lifetime with the 5.7 and 3.73 gears. Rarely loaded, either all city driving, or all freeway. Taking off my 300lb lumber rack made a fraction of an MPG difference, but otherwise seems to be the same no matter how I drive.

 

[thetacotown]

97' suburban 5.7 with 3.42, if i baby it on the highway I can almost get 18MPG (90kph at 1400rpm FTW). City driving I can sometimes get 8MPG, I just really like the sound of my exhaust c:

 

[Emanuel]

Hey Emanuel, do u have any pics of ur setup?

check out my YouTube channel and vids

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[Emanuel]

My best ever highway was 17 to 18 MPG I have a 96 4x4 extra cab longbed 5 speed with 4 inch lift and 35s

How? That's great mpg the best I got was 15

 

[Emanuel]

What gear ratio are you running? 33's and mpgs rarely cross paths.

3.73