Home Forums Gear Hunting Trucks and Four-Wheel Drives 5.3 fuel mileage

I'm looking at a 2011 silverado with the 5.3 in it. Does anyone have one that can tell me what the fuel mileage is?

A nice little resource for finding out real world fuel mileage is this site: fuelly.com

Got to "browse vehicles" (sometimes at the very bottom of the page) and find what you're researching.

I have a 5.3 in a 2016 Silverado. I think I average about 19 mpg on the highway.

How did it know I have an '08' pickup when I didn't put in the year? It's sneaking around on my computer.

My 09 averages 16.2 . It rarely goes on a trip longer than 40 miles one way. I drive 65 mph on highway

Tried to register,They want more info than any site I ever visited.Plus it would not let me get past the "I'm not a robot" box. Something is fishy ,considering all a person wants to do is find average fuel mileage

http://www.fuelly.com/car/chevrolet...id=125&bodytype_id=&submodel_id=

On the home page select browse vehicles. Then input engine and options to get a survey.
I had a 2005 with 5.3, and I got 15 mpg, in rural/highway conditions. My best friend has a 2013, and he said a bit less, but he drives pretty aggressive.
I put 100K on mine, and it was always at the shop. Beside being expensive to maintain it was a nice commuter truck.

I drive that exact truck, ext cab Z-71 4WD. Overall, in town and on the road it averages 17.5 mpg.

Just hwy, probably better. Probably a bit less pulling a trailer.

Good truck; I really like mine.

2WD may give slightly higher mileage, probably has different gear ratio.

DF

What mileage do you get at 70 mph?

The freeway speed limit here is 80. Between 75 and 80, mileage often drops a lot because cars with overdrives will drop out of OD at that speed. You're running 800 to 1000 rpm faster on the tach.

What mileage are you getting in your 08?

My '08 is a Dodge 2500 Cummins. I get about 17 on the highway, empty. That's holding it at no faster than 75. It has the 3.73 axles and a manual tranny. I'm told the autos will do slightly better.

A lot of that driving is out on the hwy at 70 mph.

Persistent 17.5 mpg

DF

I should have mentioned towing, it sucks. I get about 11 mpg towing a 12x8 steel trailer with my Ranger. The trailer is heavy as hell, but I miss my 09 Dodge Ram 1500 the son drives when it comes to towing, MPG wise it wasn't much better, but when I punched it, it the Hemi didn't hesitate to go.

From what I've seen, lugging a small engine can burn more gas than a more powerful engine coasting along.

Towing, Hemi vs. the Ranger, not much of a comparison.

DF

i buy a new chev silverado with a 5.3 every 2 years and most get over 16 -18 miles per gallon my 2017 gets 18-19 per gallon. but here`s the real kicker you pull a trailor and it goes down alot,with my 16 foot boat and trailer10-12 miles per gallon, pull my 14 ft. enclosed utility trailer pack with my elk equipment out west thru the mountains 4- 8 miles per gallon . i do always get the towing package too but if your going to pull alot of trailors with a 5.3 beware gas mileage is poor then. i always drive 70 miles per hour when legal but a 5.3 is a dang tuff engine and so is a Chevrolet truck.

Business partner replaced his 5.3 Surburban engine at 200K miles. Cost his $7K. He said that was better than $85K for a new one.

DF

Are you speaking specifically about Chevy trucks with the 5.3, or just trying to make a general statement? That certainly isn't the case with our Suburban with the 5.3; it holds OD and TC lockup easily at 80 mph, even on mild hills. It averages 15 mpg.

My ‘04 Tahoe with 5.3 gave 19 mpg, but it was 2WD. My son has it, still running it with 130K miles, no serious problems or repairs.

Seems that series gave better mileage than the new ones.

DF

Our 06 Suburban averages 15.

Short trips and highway at 75.

01 Yukon gets about the same.

Moms 09 Yukon averages about 17 I think.