2014+ Gas Mileage (MPG) Topic

[Tattooo]

Congratulations on your new truck !

[mrbadwrench]

Unfortunately my fuel economy has dropped since I bought the truck new last summer. At 40,000 miles and I see about 15.5 mpg as my tank to tank average.

 

Was getting 18 mpg average when new.

Edited October 25, 2015 by mrbadwrench

[Eddie 70]

I took this pic today while my wife and I were out running around. I thought this was going to be the high water mark. Turns out I was wrong. I got up to 25.6 at one point. Very happy with that.

 

Here is my first pic of a 50 mile running average.

 

 

This is the only picture I have at the moment. It's one my wife took while I sat in the truck and learned about some of the features of the truck in an empty parking lot.

Edited October 26, 2015 by Eddie 70

[SuperSize]

I still have the original W.O.L. Good Year Wrangler SR-A M+S P265/65R18 on there.

 

I know most don't like them, but they have been very good tires except for a little lacking in deep snow. Stay balanced, no vibrations, and with 25,000 on them, have a lot of life still in them. I've had one puncture that must have been a sharp rock, but has been doing well after the repair.

 

I also have a double-cab 5.3, 6sp, w/3.42 gear ratio.

 

What tires do you have, and your truck stats? You must travel some long slopes out West?

 

 

I have the LT265/70R17C All-terrain blackwall tires. My truck is 4x4 dbl cab 4.3 w 3.42. I drive a lot of dirt roads so need the AT tires and like having 17s for the ride. I think with the 255/70 17 street tires I could get another 2mpg easy. I guess I am pretty old school and don't like the look of the 20s or 22s, not to mention the ride.

 

I wish we had some more flat roads around here as I am getting about 28mpg going 65 on the flat. It jumps over 30 going 55. But out west here the speed limits are pretty high. We have 80 mph on a lot of Interstate. Right in town it is 70 mph on I-15. Our back roads are all 65 outside of towns.

 

We do have some good down hills so the 25 and 50 don't mean too much, but it is still fun to see what these trucks can do. I have a new 50 record that I will post up.

 

A big thing I found is that the cruse controls works really well. I have a hard time beating it. It seems to keep the motor in V4 more than I can. I will get up to speed manually and I turn off the cruse on the big down hills to let the truck pick up speed for the next up hill. And some times I will bump the speed down a few mph on uphills and then get back to the speed limit on the down hill. I even use the cruse in town.

[SuperSize]

Unfortunately my fuel economy has dropped since I bought the truck new last summer. At 40,000 miles and I see about 15.5 mpg as my tank to tank average.

 

Was getting 18 mpg average when new.

 

Is it just getting cooler out there? You will see a 20% drop off or more as it cools down. More if you are doing short trips where the motor has to warm up every time.

[mrbadwrench]

 

Is it just getting cooler out there? You will see a 20% drop off or more as it cools down. More if you are doing short trips where the motor has to warm up every time.

No, I am aware of seasonal variations. The mileage has been declining slowly since last summer. It was lower last winter but didn't really bounce back this summer.

 

My suspicion is I have a carbon build up problem, as nothing else on the truck has changed.

[Ventilator]

Last 13 months. Includes a 5+ month Michigan winter and winter blend gas.

[tnchevy]

That is very good mpg's Ventilator! I have the same truck as you and after 13 months (8100 miles) I am at 19.17 mpg's hand calculated. My DIC is always 1.0 to 1.3 mpgs higher than hand calculated but my lifetime (never have reset the trip B) has me at 19.5 so it seems the longer it has time to average mpgs the closer it is to the truth. I am not overly impressed with the mpg's I am getting considering my 2002 model with more front ground clearance and heavy LT AT tires and 4.10 gears averaged around 18 mpg.

[Tony Bianco]

Yup killed the 100,000 mile extended warranty in 20 months

I have a 2014 SLT ll Terrain .... 79,978 as of today. Warranty was gone in less than 10 months.

[RhinoGuy]

I was happy with 18mpg @500 until I viewed this thread.

[kennerz]

Got outta town for Halloween (Too many tick or treaters in my hood (hundreds)) took a road trip to our local mountains about 70mi each way. Uphill all the way out, down all the way back. Ave 15.5 on the way out and to my utter amazement hit 27.7 on the way back and have maintained over 25mpg so far.

 

This is with a 6.2 8 speed. Super impressed with this truck so far. My 6 speed manual LS1 camaro could not get that kinda mileage. My wifes 14' equinox (3.6) can't get that mileage.Only thing I know that will do that has 4 cylinders. The only thing about these trucks is they don't seem to start getting good mileage until they run for a bit like after 20+ minutes (like a timer in the computer) and they don't like loads, or hills when it comes to MPG.

[tnchevy]

Agreed with all that you said. They also suck a lot of gas when first started up and at idle then other vehicles I have had IMO.

[Eddie 70]

My first 1000 mile average. I am pretty happy with this. It may go down from here but this is a good start for a new to me 2 year old truck with 43k miles.

 

[tnchevy]

You must be out in West TN to get that kind of gas mileage, too many hills on my side of the state to get that.

[Eddie 70]

You must be out in West TN to get that kind of gas mileage, too many hills on my side of the state to get that.

 

No sir! I live just about 5 minutes south of the I40-I75 split.