ThaLS1Kid

I have been stationed overseas for about 8 years and I am finally coming back to the States. I would like to pick up a early 2000's 1500, 2WD, EC or CC, SB. I am wondering what you guys with the 4.8/5.3L's are getting for fuel mileage? Thanks!

2000chevysilverado

iTrader: (11)

I avg 15.5 city and highway and always let mine warm up for few minutes before takn off

wheeliE-maxx

Probably 19-20 highway with a tune and bolt ons in that configuration.

custm2500

iTrader: (10)

"06 Tahoe with a 5.3. Mostly city I get 13.1-13.5. Highway the computer has told me almost 17 but it is usualy .5 off.

DTHPROOF

iTrader: (1)

My stock 5.3 2001 rcsb got 420 miles/24 gallons. I put this ls1 in it with heads and cam and it got 410/tank. Then I put the built trans and yank 3600 stall and I'm 380/tank. Not bad really, it just sucks having a $100 fill-up with 93 over $4/gal.

dmelvin

iTrader: (8)

After my h/c/efan swap I started getting 19.5 on the highway with summer gas. After the stall it's around 13 in town, still 19 highway.

abey15

iTrader: (8)

06 ccsb bolt ons and 410s. Average. High 14s. 19.5 on the road

slow2008

iTrader: (3)

08 rcsb 4.8 3.23 rears, dangerously stock. 14.2 average

rj2

I get 15 city 19 highway in the 99 the 03 gets worse by about 2mpg

ThaLS1Kid

Thanks for the replies, that is what I was thinking...