Best miles per gallon?

[Birdwatcher62]

Curious what the average and best gas mileage you've gotten in your 2015-2018 silverado or sierrra 1500 crew cab is? Mine so far is pictured. It is a 2018 Sierra SLT Z71 4WD Crew with the the 5.2 liter V8 8-speed.

[SWOYER]

Im not even remotely close to that currently my best was like 17.  I have a hot foot probably, so it's normally 14

[catpartsman]

My best in 25 miles was 27.1, in 50 miles it was 26.5 and in 400 mikes it was 25.3. This was all with the factory tires and wheels along with 2” block in rear and 2.5” lift up front. Since installing the new tires and wheels, I’m not even close to these numbers. The best in 25 mikes now is 23.5.


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[B R A D]

This is with me picking kids up from school daily and errand running, normally it's 18+

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[WesternMike]

16mpg ?

[Doublebase]

Pretty much been averaging 26mpg, I drive 600 miles a week.

[qwank]

my best ever was 25.0.

 

5.3L

[grizz_wi]

14.8 is my lifetime aveage according to fuelly.indont know why it's so bad ,I drive nice to lol my 94 reg cab gets 13 but that has a thirsty 5.7

[BlueSilvyZ71]

26mpg - 2 hour trip.

[Grumpy Bear]

61,000 mile hand calculated result 26.44 mpg, and rising. 

 

[damnthetorpedoes]

Usually average around 22. Leveled with front air dam removed.

[joejoe11]

Take this with a grain of salt because I have 17" wheels instead of 20" and I don't think the dealership re-calibrated my speedometer, but my 17 v6 on the road says it gets 29.9.  However, driving in town that son of a gun sticks around 12.6.  Errrrr.  I'll do some manual calculations and see what it really is soon.

[Kendal Smart]

2016 Sierra 1500 SLT 2WD

 

I spend a lot of time getting over 25 MPG and I basically just drive the speed limit everywhere. Sometimes when I have to slow down for traffic or rain I get 30+. Best I ever averaged for 25 miles was 45.6 but it's cheating as I was coasting down a mountain in New Mexico. Secret is to always coast to stop. Drive like you have no brakes. I honestly floor it all the time and accelerate hard.

[djw88]

only looking at the last 25 or 50 miles is a poor example.

[silveradosid]

best i ever got was 28 mpg with factory 17 in donuts, since level and new tires 22 mpg