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Is this normal gas mileage?

TomN

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TomN Enthusiast

TomN

Posted
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I have a 2014 Sierra V6 and I've been averaging about 14.5-15.5 mpg. I do about 80% city and 20% highway driving. I currently have the stock 22" OEM wheels but even with my 17" wheels I was getting around 15-16 mpg.

 

I would have thought with a smaller engine I would have had higher mpg but no such luck. Does anyone else get similar mileage or is mine oddly low?

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Z71_Tommy Enthusiast

Z71_Tommy

Posted
Posted

I have a 2015 Silverado Z71 with the 5.3 with the stock 18s upgraded tires to about a 33 ill pull about 16-17mpg when I take it easy on it. That's That's about 75% city. Now all highway I've gotten 29mpg thought that was really good.

newdude Senior Enthusiast

newdude

Posted
Posted

80% city, sounds like normal MPG's based on your driving. Lots of stop and go kills mileage. Its not the size of the engine, its how you use the truck.

MaverickZ71 Senior Enthusiast

MaverickZ71

Posted
Posted

I have a 2014 Sierra V6 and I've been averaging about 14.5-15.5 mpg. I do about 80% city and 20% highway driving. I currently have the stock 22" OEM wheels but even with my 17" wheels I was getting around 15-16 mpg.

 

I would have thought with a smaller engine I would have had higher mpg but no such luck. Does anyone else get similar mileage or is mine oddly low?

 

With stock tires and wheels, running 100% gasoline (no ethanol), you should have gotten around 18mpg. Those big wheels and tires are a lot heavier than stock and have more rolling resistance, especially if you are running all-terrain type of tread instead of highway tires. Those wheels and tires and other factors, like if your gas has any ethanol percentage, if you use remote start a lot, idle a lot, and have a heavy throttle foot, could easily take your mileage down to the 15mpg range. Like they say, your mileage may vary. My 5.3 V-8 4x4 crew cab gets about 10mpg in town these days with the AFM turned off and using remote start and idling quite a bit. It takes a lot of energy to move a 5300 pound brick.

SILVERADO503 New Member

SILVERADO503

Posted
Posted

 

With stock tires and wheels, running 100% gasoline (no ethanol), you should have gotten around 18mpg. Those big wheels and tires are a lot heavier than stock and have more rolling resistance, especially if you are running all-terrain type of tread instead of highway tires. Those wheels and tires and other factors, like if your gas has any ethanol percentage, if you use remote start a lot, idle a lot, and have a heavy throttle foot, could easily take your mileage down to the 15mpg range. Like they say, your mileage may vary. My 5.3 V-8 4x4 crew cab gets about 10mpg in town these days with the AFM turned off and using remote start and idling quite a bit. It takes a lot of energy to move a 5300 pound brick.

Stock wheels, tires and suspension? Something seems to be wrong if you're getting 10 mpg in the city with a bone stock truck

 

 

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pcruis1 Enthusiast

pcruis1

Posted
Posted

14-15 sounds a little low to me, but if you're doing big city driving with a lot of stop and go, that's probably about right. The sweet spot on these trucks is probably around 40-55 mph. If you're driving slower than that, or a lot faster than that, you're going to see somewhere around 14-15.

Crstfr Enthusiast

Crstfr

Posted
Posted

i see 16 in mine.. .. thats to and from work.. i work about 20 miles from the house... and in traffic.

jimbofoxman Enthusiast

jimbofoxman

Posted
Posted

2015 Double Cab Z71 w/ 5.3 and getting 15-16 to and from work and bopping around town. Gonna be hard to get any better with 13 (not including driveway)

guaranteed stops to and from work and the possibility of 4 more depending on opposing traffic.

Donstar Senior Enthusiast

Donstar

Posted
Posted

I have a 2014 Sierra V6 and I've been averaging about 14.5-15.5 mpg. I do about 80% city and 20% highway driving. I currently have the stock 22" OEM wheels but even with my 17" wheels I was getting around 15-16 mpg.

 

I would have thought with a smaller engine I would have had higher mpg but no such luck. Does anyone else get similar mileage or is mine oddly low?

I work with L/100 km but a conversion chart shows that I get similar results as you. I have driven pickups as my main daily driver for 45+ years and am very pleased with these results. I can lighten the load and drive more conservatively to save fuel but I enjoy driving too much!

UofAZCats Enthusiast

UofAZCats

Posted
Posted

I have the stock 22" wheels and live 2 miles from work in a small town. I'd say that 80% of my driving is city. I average 14-15 mpg in the city. When I get on the highway I climb up to 21-22 mpg. I have never come close to 29 miles per gallon.

Sierra706 Senior Enthusiast

Sierra706

Posted
Posted

I range anywhere from 6-8 to 20 depending on whether I'm on the highway or 1st and 2nd in 4wd on WOT on some snowy dirt track. My average is 17.5 lifetime

 

 

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truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

Everyones definition of city is way different.

 

Someone who needs to drive 10 miles and needs to stop every 1/4 mile will have way different mpg that someone needs to stop every mile, yet both with consider it "city".

 

My city mpg is 12 and I can confirm I get the same mpg as everyone else on the highway, so it's just the conditions I drive in.

truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

The only true efficiency indicator is highway mileage as it's constant.

 

These trucks weigh 5500lbs, accelerating that mass takes a lot of energy no matter how you slice it or how you drive. On the highway energy of fuel only needs to overcome rolling resistance and wind resistance. When you accelerate you need to overcome the mass of the vehicle.

 

This is why, especially with heavy vehicles, you can take anybody city mpg claim and throw it out the window. It means nothing.

 

If all you did was accelerate and brake with no constant speed at all, you'd probably get 5 mpg. Any efficiency beyond that is simply a matter of what percentage of your driving is accelerating vs a constant speed.

 

Anybody that says something ridiculous like 18 mpg city, is really just a small percentage of "city" and a large percentage of constant speed.

smrr1 Senior Enthusiast

smrr1

Posted
Posted

That is me. 90% of my driving is hwy. my commute is 26 miles and 25 miles of that is hwy at 65-75.

 

To answer the question i would say that mpg is pretty accurate.

Sean Neilan Enthusiast

Sean Neilan

Posted
Posted

I live on Long Island and spend far more time than I wish in stop and go traffic or red lights. If I'm getting 12-13 around town I'm happy.

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