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2014+ Gas Mileage (MPG) Topic

BringTheRain403
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Snoringbear Enthusiast

Snoringbear

Posted
Posted

I've been able to get 23 ~ 24 mpg registering on my DIC active mpg recorder in 25 mile increments (don't know the real name of this screen). And, 20 mpg while on road trips running 70 ~ 75 mph when calculated after going through a full tank. This is far better performance than my 2008 Silverado 5.3/4 spd CC delivered. I'm thinking the excellent mileage is a result of the 6.2's great hp and torque which enables the engine to spend more time in 4cyl mode and tranny to spend more time in 7th or 8th gear. Btw, seeing excellent mpg results when towing my 25' 6,100lb TT.

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Natek
Natek

I think if I was a salesmen I would research the products I would be selling. I wouldn't like it if a customer came in knowing more than me.

nibael
nibael

Mine gets pretty bad mileage at 180 mph. Maybe I should get a bed cover.

Eddie 70
Eddie 70

This was taken last week when I filled up. So far I have put this many miles on the truck. Hopefully it stays like this. We will see.  

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Gofas Enthusiast

Gofas

Posted
Posted

7 miles into town and I live on a really steep hill and get 16 mpg. Only 2 mpg less than my taco 4x4

Gofas Enthusiast

Gofas

Posted
Posted

7 miles into town and I live on a really steep hill and get 16 mpg. Only 2 mpg less than my taco 4x4

My best 25 is 39mpg

Snoringbear Enthusiast

Snoringbear

Posted
Posted

7 miles into town and I live on a really steep hill and get 16 mpg. Only 2 mpg less than my taco 4x4

Forgive me, but I'm old and not current on new lingo; what's a "taco"? A Tahoe maybe?

tyrich88 Enthusiast

tyrich88

Posted
Posted

Forgive me, but I'm old and not current on new lingo; what's a "taco"? A Tahoe maybe?

Tacoma

16z71Tom Enthusiast

16z71Tom

Posted
Posted (edited)

An experiment I did. 60 mph cruise control set on my commute. 90% highway. 563 miles to the tank. Best 25 mile mpg was 30.6. Filled up the tank with 24.5 gallons.

D2B9B4AF-70DD-4672-A75A-36AB3D15FCA0.jpg

 

67E26061-AD96-4E2F-890A-FD41872909FD.jpg

 

6F6BA95E-F617-4DD9-B341-2D188E260F83.jpg

Edited by 16z71Tom
  • Like 2
  • 2 weeks later...
TedH Enthusiast

TedH

Posted
Posted

On a recent round trip from Clearwater, FL to Sarasota, FL, I averaged 23.2 mpg. This is outstanding mileage. I tend to tap the brakes when I see the stop light is red to let the truck coast (not excessively) a bit before I brake to slow. Around town, my commute mpg is 18-20 mpg (with some stop-and-go). I hope to achieve better mileage on a longer trip with max speeds 70-75mph.

 

2014 Silverado High Country, crew cab, 5.3L. Only mod is a K&N filter in the stock air box.

TedH Enthusiast

TedH

Posted
Posted

An experiment I did. 60 mph cruise control set on my commute. 90% highway. 563 miles to the tank. Best 25 mile mpg was 30.6. Filled up the tank with 24.5 gallons.

D2B9B4AF-70DD-4672-A75A-36AB3D15FCA0.jpg

 

67E26061-AD96-4E2F-890A-FD41872909FD.jpg

 

6F6BA95E-F617-4DD9-B341-2D188E260F83.jpg

This is the kind of performance I hope to approach on a long trip. With Cruise and some coasting downhill and approaching stop lights. The truck seems to know when it should be in v4 and v8 mode.

  • 2 weeks later...
namanc6 Enthusiast

namanc6

Posted
Posted

I turned off brake assist and i think my mpg went up a little

 

Sent from my SM-G900P using Tapatalk

how do you turn off brake assist?
cNate Enthusiast

cNate

Posted
Posted

Now that I've done the 6" lift, 35" tires and taken the front air valance off, I'm seeing about 16 MPG on the same stretch of highway where I'd previously get 24 MPG (that's adjusting calculation for new tires). My all around driving has been more like 3 mpg drop off. City isn't nearly as dramatic a drop as freeway when I get all that wind resistance. What's interesting is I clocked about 15 MPG on a stretch of freeway that is 19 MPG without lift and tires. It seems the air resistance allows for about a 15/16 MPG highway max at 65 MPH regardless of whether I'm going flat or on a decline. All that wind resistance seems to counter act going downhill! Anyways, just thought I'd post it in case someone comes looking for MPG before and after a 6" lift and 35s.

 

I personally don't mind the drop off. I knew it would happen and I didn't buy a truck or lift one to save money at the pump; however, it is interesting to watch the performance. It is also noteworthy that my 2009 Suburban LTZ with the 5.3L, and no changes to stock setup, got the same mileage as my lifted truck does now. The engine enhancements and difference in weight accounts for this.

Rme2513 Enthusiast

Rme2513

Posted
Posted

Hold down tow button 5 sec

Sent from my SM-G900P using Tapatalk

do you have to do this every time you start the truck
  • Like 1
  • 3 weeks later...
Eddie 70 Senior Enthusiast

Eddie 70

Posted
Posted (edited)

This was today and at that point I had put those 15k miles on it since I got it.

 

15000%20mile%20MPG_zps5wguybgq.jpg

Edited by Eddie 70

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