Poor mileage?

jljbtm · Dec 28, 2016

I'm really not trying to complain about mileage after all I do own a truck. However I just bought this 2011 5.7 liter filled it up the second time and I am getting 13.4 miles per gallon just like the evic says on the dashboard (what I thought was wrong) but C'Mon 13.4 miles per gallon my old 99 Chevy that I traded in got about 14 or 15 miles per gallon, my 05 Dodge Magnum has the same Hemi engine and gets over 19 usually 21 miles per gallon. So I do think something is wrong? What mpg do you get?

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DILLIGAF · Dec 28, 2016

I get 10 city driving...lol...

Burla · Dec 28, 2016

My average is 12. not evic but actual.

02Steve15 · Dec 28, 2016

I get 17/18 in the summer..13/14 in winter

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Sir John · Dec 28, 2016

I used to average 17 in the winter and 19-20 in the summer (hand calculated) on my 2014 Sport. I now have a 2016 Rebel with about 600 miles on it and my EVIC is only showing 15-16. I'm afraid to hand calculate it...lol.

jljbtm · Dec 28, 2016

I'm wondering what the sticker said when it was new?

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Birddog · Dec 28, 2016

My 3500 dually gets 18/22 but that's with a Cummins. My old 2012 1500 qc got 17/20. Do you have the factory sized tires or mods on yours?

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jljbtm · Dec 28, 2016

It looka all stock to me with 20" tires.

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jljbtm · Dec 28, 2016

17/20 would be more like it

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Rzrman328 · Dec 28, 2016

17-20 on stockers.

MEchase · Dec 28, 2016

2014, 5.7L Hemi, Crew Cab, 4x4, stock. I do have the 8-speed transmission, 3.21 gears, and active shutters so my truck has some fuel mileage upgrades over yours. I purchased in early October 2016, so my time is limited. My total daily commute is about 57 miles with ~38 miles of it highway. I do run errands on the weekends in the city, especially since my wife really likes riding in the truck.
My EVIC averages around 19.5 mpg.
My Fuelio app says my average is 18.043 mpg, but it's artificially inflated and will continue to drop. I expect it to settle somewhere around 17.5mpg. Out of 8 fill ups, my best tank was 19.25 mpg and 5 of them were between 17.0-17.9 mpg.

Edit:
I have no idea if I'm low or not. It does feel like I should be doing a little better. My EVIC consistently reads 1.5 - 2 mpg higher than I'm actually getting. Something seems a little off, but not too crazy.

jljbtm · Dec 28, 2016

17/20mpg's

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DannyMK2 · Dec 28, 2016

jljbtm said:
I'm really not trying to complain about mileage after all I do own a truck. However I just bought this 2011 5.7 liter filled it up the second time and I am getting 13.4 miles per gallon just like the evic says on the dashboard (what I thought was wrong) but C'Mon 13.4 miles per gallon my old 99 Chevy that I traded in got about 14 or 15 miles per gallon, my 05 Dodge Magnum has the same Hemi engine and gets over 19 usually 21 miles per gallon. So I do think something is wrong? What mpg do you get?

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considering its a used truck, id start by giving it a tune up if you havent done so already. might help.

aside from that, its winter. 13-14 mpgs sounds about right to me.

blrmkrl83 · Dec 28, 2016

jljbtm said:
I'm really not trying to complain about mileage after all I do own a truck. However I just bought this 2011 5.7 liter filled it up the second time and I am getting 13.4 miles per gallon just like the evic says on the dashboard (what I thought was wrong) but C'Mon 13.4 miles per gallon my old 99 Chevy that I traded in got about 14 or 15 miles per gallon, my 05 Dodge Magnum has the same Hemi engine and gets over 19 usually 21 miles per gallon. So I do think something is wrong? What mpg do you get?

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That's about where I'm sitting right now. I'll get about 2mpg better in the summer. Good average on the highway in the summer is 17-18. I've got over 20 before. City sucks big time. Probably 10-11 this time of year. Takes a lot of gas to get a 6000 lb truck moving.

yillbs · Dec 28, 2016

If it makes you feel any better, I average 11.5, 6 inch lift, and 35 inch tires though... but still, 11.5 is on the very very high side. I average much lower in the city

Gump · Dec 28, 2016

You're driving a near 400 hp brick. Mine gets 13/17 with the level kit and bigger tires.

Birddog · Dec 28, 2016

yillbs said:
If it makes you feel any better, I average 11.5, 6 inch lift, and 35 inch tires though... but still, 11.5 is on the very very high side. I average much lower in the city

Wow, I was complaining about 14 average with my 2500 (same size lift and tires). I had a Cummins in that also.

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novelmike · Dec 29, 2016

jljbtm said:
I'm really not trying to complain about mileage after all I do own a truck. However I just bought this 2011 5.7 liter filled it up the second time and I am getting 13.4 miles per gallon just like the evic says on the dashboard (what I thought was wrong) but C'Mon 13.4 miles per gallon my old 99 Chevy that I traded in got about 14 or 15 miles per gallon, my 05 Dodge Magnum has the same Hemi engine and gets over 19 usually 21 miles per gallon. So I do think something is wrong? What mpg do you get?

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Any record of the spark plugs being changed? Do not pull one out and judge it by sight. They They should be done every 30-40,000 miles for your year. When I did mine, it not only increased my mpg, but it regained the power that slowly disappeared.

XCELLR8 · Dec 29, 2016

Do you know what size rear gear you have? It will affect the mileage.

Poor mileage?

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