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5.3 Sierra mpg? #872248
02/20/14 06:33 PM
02/20/14 06:33 PM
Joined: Apr 2007
Posts: 13,731
Over yonder
E
extreme heights hunter Offline OP
Booner
extreme heights hunter  Offline OP
Booner
E
Joined: Apr 2007
Posts: 13,731
Over yonder
What's everyone getting per gallon out of their 5.3?

I have a 2006 crew cab z71 and I get 14 1/2 mpg no matter what I do. 285-70-17 tires.
I hear of people getting 18mpg with same set up and I just don't believe it.
What say you?

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872257
02/20/14 06:37 PM
02/20/14 06:37 PM
Joined: Jan 2013
Posts: 2,460
Marshall County
Haybale Offline
bearded hen
Haybale  Offline
bearded hen
Joined: Jan 2013
Posts: 2,460
Marshall County
I got a 99 z71 with a 5.3. I get 14.5-15. Like you said it don't matter how you drive it. You could drive it off a cliff an get 14.5-15 on the way to the ground.


"To God Be The Glory"

"I'm in if it involves sticking my hand in a hole". Brent mashburn.
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872262
02/20/14 06:39 PM
02/20/14 06:39 PM
Joined: Jan 2011
Posts: 12,018
chilton co.
trox28 Offline
on probation
trox28  Offline
on probation
Joined: Jan 2011
Posts: 12,018
chilton co.
I got 13-14 outta my old sierra with the 5.3 and it was lifted 9" with 37" super swampers.

Re: 5.3 Sierra mpg? [Re: trox28] #872266
02/20/14 06:43 PM
02/20/14 06:43 PM
Joined: Apr 2007
Posts: 13,731
Over yonder
E
extreme heights hunter Offline OP
Booner
extreme heights hunter  Offline OP
Booner
E
Joined: Apr 2007
Posts: 13,731
Over yonder
Originally Posted By: trox28
I got 13-14 outta my old sierra with the 5.3 and it was lifted 9" with 37" super swampers.


Had to have been pre-ethanol

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872272
02/20/14 06:48 PM
02/20/14 06:48 PM
Joined: Jan 2011
Posts: 12,018
chilton co.
trox28 Offline
on probation
trox28  Offline
on probation
Joined: Jan 2011
Posts: 12,018
chilton co.
Its been bout 6 years ago i guess since i sold it.

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872303
02/20/14 07:18 PM
02/20/14 07:18 PM
Joined: Mar 2010
Posts: 97
Cullman, AL
M
MountainTopHunter Offline
spike
MountainTopHunter  Offline
spike
M
Joined: Mar 2010
Posts: 97
Cullman, AL
Mine is a 2012 model and it gets 18 miles per gallon. Prior to that I had a 2009 model and it would get 17.5 miles per gallon. Fairly good amount is highway miles though.

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872306
02/20/14 07:20 PM
02/20/14 07:20 PM
Joined: Aug 2006
Posts: 32,451
North Alabama
YEKRUT Offline
Turkey Nut
YEKRUT  Offline
Turkey Nut
Joined: Aug 2006
Posts: 32,451
North Alabama
2004 has averaged 16.3 on the life of the truck....I can get 20-22 on the interstate on long hauls.....14-15 around here stop and go.


Some men are mere hunters; others are turkey hunters. —Archibald Rutledge—
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872309
02/20/14 07:23 PM
02/20/14 07:23 PM
Joined: Mar 2003
Posts: 16,021
Hartselle Al.
n2deer Offline
Old Mossy Horns
n2deer  Offline
Old Mossy Horns
Joined: Mar 2003
Posts: 16,021
Hartselle Al.
2006 crew z71

Get 16-18 depending on how I drive it.


Do you want to hear him gobble, or do you want to kill him.
Re: 5.3 Sierra mpg? [Re: trox28] #872375
02/20/14 11:44 PM
02/20/14 11:44 PM
Joined: Dec 2012
Posts: 2,445
MattIce Offline
10 point
MattIce  Offline
10 point
Joined: Dec 2012
Posts: 2,445

Originally Posted By: trox28
I got 13-14 outta my old sierra with the 5.3 and it was lifted 9" with 37" super swampers.

Same here had an 03 z71 with the 5.3 9 inch lift and 37 inch mud grapplers. Getting right around 14


Parked in a holler, beneath the mountain moon light.
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872392
02/21/14 02:01 AM
02/21/14 02:01 AM
Joined: Dec 2006
Posts: 5,018
Mt. Olive
Sharpshooter69 Offline
12 point
Sharpshooter69  Offline
12 point
Joined: Dec 2006
Posts: 5,018
Mt. Olive
'05 Sierra crew Z71. 5.3 4:10 gears. 14-15 mpg.


The only thing necessary for the triumph of evil is that good men do nothing.
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872395
02/21/14 02:12 AM
02/21/14 02:12 AM
Joined: Aug 2006
Posts: 4,782
Heart of Dixie
Narrow Gap Offline
10 point
Narrow Gap  Offline
10 point
Joined: Aug 2006
Posts: 4,782
Heart of Dixie
My 2012 Sierra Z60 4X4 gets 16 mpg. I have a K&N Cold Air Intake and a Gibson Metal Mulitia Exhaust System I put on the truck and it improved my gas mileage by .1 mpg. Truck is a whole lot funner to drive though.


Duty, Honor, Country

Robert E. Lee
Re: 5.3 Sierra mpg? [Re: Narrow Gap] #872419
02/21/14 03:09 AM
02/21/14 03:09 AM
Joined: Nov 2011
Posts: 759
southwest alabama
aldoghunter Offline
4 point
aldoghunter  Offline
4 point
Joined: Nov 2011
Posts: 759
southwest alabama
2001 Z71 5.3 330,000 miles still gets 17 mpg. I have stock size tires,265/75R16


Be safe & have fun
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872453
02/21/14 03:41 AM
02/21/14 03:41 AM
Joined: Jan 2002
Posts: 11,743
Saraland, Alabama
hammerhead Offline
Booner
hammerhead  Offline
Booner
Joined: Jan 2002
Posts: 11,743
Saraland, Alabama
Im getting right at 17.5 mpg in my 2010 (with winter blend fuel). Spring and summer time I get about 18.5

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872564
02/21/14 05:25 AM
02/21/14 05:25 AM
Joined: Nov 2013
Posts: 2,057
Alabama Wetumpka
Talltines Offline
on probation
Talltines  Offline
on probation
Joined: Nov 2013
Posts: 2,057
Alabama Wetumpka
Avalanche 1500 Z71 Pre Ethanol 17-19 Now 14 No matter what. Stupid Ethanol cost more and My truck use more how is that better. Same For Trans am Glad its a 6 speed 5.7 in it can still squeeze out 22mpgs if I keep my foot out of it.


Hunting Is my Obsession, My Passion, My Everything, Oh so is my wife.
Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872619
02/21/14 06:09 AM
02/21/14 06:09 AM
Joined: Jul 2005
Posts: 19,125
Chelsea, AL
straycat Offline
Old Mossy Horns
straycat  Offline
Old Mossy Horns
Joined: Jul 2005
Posts: 19,125
Chelsea, AL
2007 Sierra 4x4 with 122,000 miles.

Old tires: Goodyear Eagles 255-70-20-- 15.8 average for life of the truck (13 or so around town, 18-19 hwy)

New Tires for the past 5,000 miles: Nitto Terra Grapplers 260-70-20 getting about 2 mpg less on average, but I haven't been doing nearly as much highway driving since November in my truck, so I'm sure that has tweaked the mileage a good bit.


"The grass withers, the flower fades, But the word of our God stands forever." Isaiah 40:8

"Neither the wisest constitution nor the wisest laws will secure the liberty and happiness of a people whose manners are universally corrupt.� Samuel Adams
Re: 5.3 Sierra mpg? [Re: YEKRUT] #872626
02/21/14 06:12 AM
02/21/14 06:12 AM
Joined: Dec 2013
Posts: 1,648
Hazel Green
O
Oscarflytyer Offline
8 point
Oscarflytyer  Offline
8 point
O
Joined: Dec 2013
Posts: 1,648
Hazel Green
Originally Posted By: YEKRUT
2004 has averaged 16.3 on the life of the truck....I can get 20-22 on the interstate on long hauls.....14-15 around here stop and go.


About where my 09 is. I have found that diff gas can make a HUGE diff, and some of the cheapest can sometimes be the best!

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872631
02/21/14 06:15 AM
02/21/14 06:15 AM
Joined: Jan 2011
Posts: 636
Horton, Al. Marshall Co.
T
tim1980 Offline
4 point
tim1980  Offline
4 point
T
Joined: Jan 2011
Posts: 636
Horton, Al. Marshall Co.
2013 Chevrolet Z71 extended cab getting about 14.3 around town might hit 20 on interstate. It has factory 18" tires and 6 speed auto. I had 2011 single cab Z71 it did a little better than this one same set up.

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872659
02/21/14 06:36 AM
02/21/14 06:36 AM
Joined: Sep 2007
Posts: 267
north alabama
H
hilltop Offline
4 point
hilltop  Offline
4 point
H
Joined: Sep 2007
Posts: 267
north alabama
I have a 2012 4 door crew cab z-71 and My fuel average on my truck is about 15.8. i am sure it might get a little better if a drove on the interstate all the time. But i don't.

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872761
02/21/14 08:25 AM
02/21/14 08:25 AM
Joined: Jun 2013
Posts: 535
Hartselle
SCR00BK Offline
4 point
SCR00BK  Offline
4 point
Joined: Jun 2013
Posts: 535
Hartselle
2001 ext cab z71 5.3 3.73 285 10 ply mud tires in town 13.5-16 towing the ranger @ 70 mph 10 mpg. Sent computer to black bear performance that really woke up the truck I highly recommend it for all you 4.8 5.3 6.0 truck people.

Re: 5.3 Sierra mpg? [Re: extreme heights hunter] #872781
02/21/14 08:39 AM
02/21/14 08:39 AM
Joined: Aug 2001
Posts: 49
Fayetteville, TN
G
graydw1 Offline
spike
graydw1  Offline
spike
G
Joined: Aug 2001
Posts: 49
Fayetteville, TN
Not a truck but is a 5.3. 2008 burb, 4x4 loaded with 6 adults and gear to Mobile and back, 19.4 mpg


Darrell
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