2014+ Gas Mileage (MPG) Topic

dodgehemi0 · June 23, 2014

ive been testing 93 octane in my 6.2 however i'm seeing terrible mpg. i do all city driving, and its around 13.9 and has brought my lifetime down to like 14 or 15.

are you the first one to take off from a red light? If so that's why the mileage is so bad.

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Bikewhisperer · June 23, 2014

are you the first one to take off from a red light? If so that's why the mileage is so bad.

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You can't just blame driving style. I had a 5.3 with 3.08 gears and my lifetime over 9000 miles was 14mpg. I would drive with the full intention of getting the best fuel economy possible, but it just wouldn't do it. It did have some good moments here and there, but when I went to a diesel 2500 I broke all my mpg records from that 1500.

It's a shitty problem to have because the dealers won't help out because it's easy to blame driving style.

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KARNUT · June 23, 2014

I drive on the hard side and don't speed, don't need to in Texas speed limits are high. Im most often first to leave the light, my lifetime average on E85 and some 93 is 16 MPH. Most would be in town.

Edited June 23, 2014 by KARNUT

Mad Max · June 24, 2014

I drive on the hard side and don't speed, don't need to in Texas speed limits are high. Im most often first to leave the light, my lifetime average on E85 and some 93 is 16 MPH. Most would be in town.

I hope you're in the slow lane

KARNUT · June 24, 2014

I hope you're in the slow lane

On the freeway its the Texas speed limit, go with the flow or get out the way.

Mike1220 · June 24, 2014

You can't just blame driving style. I had a 5.3 with 3.08 gears and my lifetime over 9000 miles was 14mpg. I would drive with the full intention of getting the best fuel economy possible, but it just wouldn't do it. It did have some good moments here and there, but when I went to a diesel 2500 I broke all my mpg records from that 1500.

It's a shitty problem to have because the dealers won't help out because it's easy to blame driving style.

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Not sure how yours was so low. Did you keep the tires properly inflated and all the other jazz that they say is necessary for good mileage? My 5.3 3.42 4x4 CCSB has had great mileage. My lifetime is 16 mpg. With about 85% of that being city and 15% highway. And about 20% of my overall has been with a lead foot cause it's nice to hear the exhaust!

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Bikewhisperer · June 24, 2014

Tires were fine and I was 70 percent hwy. I towed a 6x12 enclosed trailer once for 100 miles and got 6mpg.

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Nofastcar · June 24, 2014

Now that my 4.3 has 5k miles on it I'm getting almost 18 mpg on average. As high as 24 mpg on long trips.

Btreyu09 · June 24, 2014

I drive on the hard side and don't speed, don't need to in Texas speed limits are high. Im most often first to leave the light, my lifetime average on E85 and some 93 is 16 MPH. Most would be in town.

I hope you're in the slow lane

On the freeway its the Texas speed limit, go with the flow or get out the way.

MPG* The speed limit is over 16 in Texas.

KARNUT · June 25, 2014

MPG* The speed limit is over 16 in Texas.

Thanks, I know C~, MPG MPG MPG MPG MPG , Got it. Teacher can I go home now? MPG MPG MPG

TJay74 · June 25, 2014

Man I don't know what some of you are doing to get such low numbers.

DIC shows almost 20mpg, 25 mile average shows 26mpg, 50 mile average shows 22mpg, 400 mile average shows almost 20mpg. My hand calculated mileage shows anywhere from 18.75-20.5mpg on my weekly commute.

Newm · June 25, 2014

My hand calculated mileage shows anywhere from 18.75-20.5mpg on my weekly commute.

That's about spot on what I am seeing with my 6.2. It has settled into 18-19 on my normal weekly driving and if I can get out on the freeway for any amount of time it puts me at 20-21mpg.

Tattooo · June 25, 2014

What milage are you guys getting with the 5.3 ? I have a 2014 Sierra 1500 All terrain 20" wheels 5.3 4x4 Stickers epa said 16 - 22 I get 16 city and MAX 19 Hwy.....that 22 must be on a dyno at 40 mph.....

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Mike1220 · June 25, 2014

What milage are you guys getting with the 5.3 ? I have a 2014 Sierra 1500 All terrain 20" wheels 5.3 4x4 Stickers epa said 16 - 22 I get 16 city and MAX 19 Hwy.....that 22 must be on a dyno at 40 mph.....

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EPA sticker on mine said 21 hwy. but I've seen 22-23 cruising between 70-75MPH (not drafting btw, but when I do I get 25MPG). City I can get 16MPG if I play it easy.

I've got right around 4600 miles on the truck. CCSB 4x4 with factory wrangler street tires. 275/55/20 5.3L with 3.42 gears.

Mine used to get around 18-19 mpg hwy. when I bought the truck I got 15-17 on the hwy drive home. But mileage seems to be getting better with more miles.

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