Poor MPG's

Only have my truck(14 CM 5.7 2wd) for a month and seeing 10.5 average MPG's. Truck has 3/1 lift with 295/70/18. Light on the pedal for the most part and thinking something isn't right as most here get anywhere from 12.5-15ish for city driving. Is there anything I should look for that might be the cause?

 

The 13-15 is what i got prior to lift and big wheels in the city.... now i get 11-13. I have the same size tires as you and similar lift. Highway I'm not sure about quite yet. Might find out next weekend

 

Same as Bree^^^^ 10.8 city...It is what it is......

 

I've been getting 12.5-12.8 with mix freeway and city driving.

 

Interesting. I'm not concerned about the fuel just trying to figure out if something is wrong with it. Drives perfect and so if 10.5 is all she gets so be it. Fuel efficiency is not why I bought it.

 

Depending on my foot and how heavy it is in days my kids make me run behind will depend on mpg. When i drive totally normal i get around 12mpg

 

You have too figure that moving those big ass heavy tires will drop mpg. Your truck is working harder to make them move

 

Yeah, I've been taking it easy

 

I average 9 but my truck spends 80% of its life with a trailer hooked up to it.
10.8 seems right with a lift.

 

I track my fill ups on fuelly.com. You may want to give it a try to determine your baseline.

I'm on stock size 10 ply BFG's, typically all stop amd go city driving. You can see my MPG's in my sig, if you are on a mobile device you can turn it sideways to see it.

 

Im not sure yet on my mpg with the SC the bully dog says 11 or 12 the tundra says 16 or 17 . When i fill up i will find out the true mpg. I'd be happy with 11mpg with all the thromping I've been doing.

 

I guess it's normal, Thanks all!

 

If you didn't recalibrate your speedo the gauge also doesn't factor in that the wheels are turning 6.5% slower, so you're traveling more in 1 rotation than before

 

How does one recalibrate the speedo?

 

Lots of options but a popular example: https://www.autoanything.com/performance-chips/61A3757A0A0.aspx

Honestly I wouldn't bother unless it really bugs you