i have a 2015 ram 1500 sport crew cab with the 5.7 bed its the 5.7 HEMI has 4x4 and the 8 speed auto with 392 gearing is there anyone else that has the similar truck that can relate to the terrible fuel consumption... i bought it new at the dealer and specifically asked for a truck with great mileage and i get this gas hog far from what i asked for but im told its the best ill get 500 km/ 310 miles to a tank heck my 2003 ram 4.7 magnum got better and i didnt make payments on it and they call this the most fuel efficient pickup ever... what a lie
2015 ram terrible fuel economy
jynxrj
81 - 100 of 177 Posts
The most efficient truck they are referring to is the 3.0 diesel version of the 1500
I have read the entire thread and have a couple thoughts...
(I used'ta work in fuel economy analysis so I have some perspective, I hope)
1. "Label" fuel economy is the *sales weighted average* for that 'powertrain configuration' which includes (in this example) ALL 1500 4x4 hemi 8-spd. The number on your label DOES NOT take into account the options on your truck. When considering the FE of a particular truck, use the label only as a guide, but consider what options are on THAT truck which would make it better or worse than the "average".
Basicly EVERY OPTION that you order WILL HURT FE except tonneau cover, air ride, and wheel-to-wheel steps (all help aero slightly and will improve highway FE a smidge).
more here: http://en.wikipedia.org/wiki/Monroney_sticker
I would project a loss of 1-1.5 mpg FOR EACH axle 'step', so 2-3 mpg loss from 3.21 to 3.92 (2 steps); also the 'off-road' tires you have equipped will be at least another 1 mpg. (from the 'base' truck, not from the 'Label' FE)
Additionally, many common 'mods' will hurt FE. Larger tires = big hit. 'Off-road' tire tread = big hit. Lift kit = big hit. etc...
2. As mentioned , the 'testing cycle' used to generate the 'Label' fuel economy is very conservative and unlike what most of us actually drive. IF you drove the cycle, THEN you would get much closer to the Label. Otherwise, you won't.
I know you're in canada but the idea is the same.. the "cycle" is super conservative.
http://en.wikipedia.org/wiki/Fuel_economy_in_automobiles#EPA_testing_procedure:_2008_and_beyond
3. Consider your 'driving habits' to include more than just your actual driving 'technique'. For example, often we let our trucks idle to warm up (or cool down) before driving, and 'leave 'em running' when we go to store, or bar lol;
in the winter in Northern climates, we deal with a triple whack of less efficient engine & transmission operating due to the cold temps, lower energy gas available at the pumps, and extended idle times to warm up before driving. Added together it is not uncommon for winter FE to drop 30-50%...
(I used'ta work in fuel economy analysis so I have some perspective, I hope)
1. "Label" fuel economy is the *sales weighted average* for that 'powertrain configuration' which includes (in this example) ALL 1500 4x4 hemi 8-spd. The number on your label DOES NOT take into account the options on your truck. When considering the FE of a particular truck, use the label only as a guide, but consider what options are on THAT truck which would make it better or worse than the "average".
Basicly EVERY OPTION that you order WILL HURT FE except tonneau cover, air ride, and wheel-to-wheel steps (all help aero slightly and will improve highway FE a smidge).
more here: http://en.wikipedia.org/wiki/Monroney_sticker
I would project a loss of 1-1.5 mpg FOR EACH axle 'step', so 2-3 mpg loss from 3.21 to 3.92 (2 steps); also the 'off-road' tires you have equipped will be at least another 1 mpg. (from the 'base' truck, not from the 'Label' FE)
Additionally, many common 'mods' will hurt FE. Larger tires = big hit. 'Off-road' tire tread = big hit. Lift kit = big hit. etc...
2. As mentioned , the 'testing cycle' used to generate the 'Label' fuel economy is very conservative and unlike what most of us actually drive. IF you drove the cycle, THEN you would get much closer to the Label. Otherwise, you won't.
I know you're in canada but the idea is the same.. the "cycle" is super conservative.
http://en.wikipedia.org/wiki/Fuel_economy_in_automobiles#EPA_testing_procedure:_2008_and_beyond
3. Consider your 'driving habits' to include more than just your actual driving 'technique'. For example, often we let our trucks idle to warm up (or cool down) before driving, and 'leave 'em running' when we go to store, or bar lol;
in the winter in Northern climates, we deal with a triple whack of less efficient engine & transmission operating due to the cold temps, lower energy gas available at the pumps, and extended idle times to warm up before driving. Added together it is not uncommon for winter FE to drop 30-50%...
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293 Posts
Great points HemiHFE! I have 3.55 ratio and at 33000 miles my BEST tank average was 20.1 mpg coming down towards (and past) Albuquerque NM from Red River NM. 95% of my tanks average in the mid to high 17's although I tend to be slightly heavy on the throttle so I find this number to be very good compared to my previous Tundra which rarely saw 17's if ever.
To the OP: If you bought a 5.7 liter ANYTHING with 4x4 you weren't going to get great gas mileage!
To the OP: If you bought a 5.7 liter ANYTHING with 4x4 you weren't going to get great gas mileage!
I have a new (less than 300 miles) Sport Crew Cab 4X4, 5'7" box, tonneau cover, wheel to wheel steps and 3.92. Just drove Columbia, SC to Greensboro, NC - 180 miles or so, cruise set on 80 for most part, and I averaged 16 mpg. Better than the 13.2 in the wife's 2014 Sequoia....
My 2015 Laramie with the pentastar and 3.55 gears - fully loaded with air suspension, Ramboxes, skid plates and more is averaging 17-18 mpg around town and 23 mpg on the highway - very, very pleased - plenty of power and acceleration - with no up charges for the Hemi or the diesel.
I think this pentastar motor with this 8 speed transmission is THE best kept secret in the truck market today. The performance of this truck overall:
- Towing at 7,000 lbs.;
- Payload rating better than a Hemi;
- Great acceleration and power;
- Good gas mileage with no increased cost for diesel fuel or higher octane gas;
- Naturally aspirated - no turbos - like on the F(ix) O(r) R(epair) D(aily) F150's
Make this an all around performer - low cost yet VERY capable!
I think this pentastar motor with this 8 speed transmission is THE best kept secret in the truck market today. The performance of this truck overall:
- Towing at 7,000 lbs.;
- Payload rating better than a Hemi;
- Great acceleration and power;
- Good gas mileage with no increased cost for diesel fuel or higher octane gas;
- Naturally aspirated - no turbos - like on the F(ix) O(r) R(epair) D(aily) F150's
Make this an all around performer - low cost yet VERY capable!
My hemi
I have A 2015 Laramie 4/4 with 321 rear end.
I live in a rural environment...so no city traffic for me most of the time. My truck gets around 18 lugging around the country. I just ran down the freeway to get my front side windows tinted, and I averaged for the 50 mile round trip 20.5 mpg. Most of the time I was in cruise control running around 66 to 70 mph.
It's important to note I am trying to get good mileage and see what this thing will really do. These engines are fun to hot rod, but you pay for that at the pump. The bottom line for me is this configuration is capable of meeting the eps ratings.
I replaced a 2007 tundra and it got maybe 17 on the same roads.
I have A 2015 Laramie 4/4 with 321 rear end.
I live in a rural environment...so no city traffic for me most of the time. My truck gets around 18 lugging around the country. I just ran down the freeway to get my front side windows tinted, and I averaged for the 50 mile round trip 20.5 mpg. Most of the time I was in cruise control running around 66 to 70 mph.
It's important to note I am trying to get good mileage and see what this thing will really do. These engines are fun to hot rod, but you pay for that at the pump. The bottom line for me is this configuration is capable of meeting the eps ratings.
I replaced a 2007 tundra and it got maybe 17 on the same roads.
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17 Posts
I'm averaging 19.3 MPG on my daily commute right now with 65% highway driving. I have a 4x4 with the 3.21 gears.
Yes 4x4 and hand calculated - this is a great truck
I got a fuelly account 2 months ago, which basically hand calculates each tank for you and gives you your average MPG over the life of the vehicle. Right now mine is at 18.3 MPG which covers the 2801 miles I've driven since i set up the account in early February. My EVIC isn't usually spot on, but its almost always within 1-1.5 MPG. I have found that going by the AVG MPG on your fuel economy screen, and not resetting it will yield more accuracy. The EVIC has actually been under my actual MPG once or twice; I think its decently accurate for what it is.
There has to be some reason you are getting such poor mileage. As mentioned.... warmups, excessive stop & go, etc.
I use "fuelly.com" to track my mileage. Here's a printout of what I get with the 3.92 gear. I drive what I call a normal pattern, meaning rarely push the pedal all the way to the max but don't try to maximize economy.
Date Miles Gallons MPG Price City%
03/21/15 389.00 23.078 16.86 2.090 95%
03/12/15 338.00 20.040 16.87 2.109 95%
03/05/15 386.00 23.164 16.66 2.190 85%
02/24/15 374.00 23.414 15.97 2.170 95%
02/16/15 355.00 21.700 16.36 2.119 75%
02/10/15 409.00 24.924 16.41 2.029 70%
02/02/15 435.00 24.744 17.58 1.910 30%
01/26/15 481.00 24.399 19.71 1.839 5%
01/26/15 400.00 23.312 17.16 1.899 50%
01/23/15 319.00 18.803 16.96 1.779 75%
01/23/15 436.00 24.070 18.11 1.799 5%
01/22/15 200.00 11.340 17.64 1.899 40%
01/19/15 412.00 24.258 16.98 1.909 60%
01/14/15 342.00 21.656 15.79 1.939 95%
01/07/15 410.00 23.270 17.62 2.079 40%
12/29/14 402.00 24.530 16.39 2.139 90%
12/24/14 378.00 23.815 15.87 2.199 95%
I use "fuelly.com" to track my mileage. Here's a printout of what I get with the 3.92 gear. I drive what I call a normal pattern, meaning rarely push the pedal all the way to the max but don't try to maximize economy.
Date Miles Gallons MPG Price City%
03/21/15 389.00 23.078 16.86 2.090 95%
03/12/15 338.00 20.040 16.87 2.109 95%
03/05/15 386.00 23.164 16.66 2.190 85%
02/24/15 374.00 23.414 15.97 2.170 95%
02/16/15 355.00 21.700 16.36 2.119 75%
02/10/15 409.00 24.924 16.41 2.029 70%
02/02/15 435.00 24.744 17.58 1.910 30%
01/26/15 481.00 24.399 19.71 1.839 5%
01/26/15 400.00 23.312 17.16 1.899 50%
01/23/15 319.00 18.803 16.96 1.779 75%
01/23/15 436.00 24.070 18.11 1.799 5%
01/22/15 200.00 11.340 17.64 1.899 40%
01/19/15 412.00 24.258 16.98 1.909 60%
01/14/15 342.00 21.656 15.79 1.939 95%
01/07/15 410.00 23.270 17.62 2.079 40%
12/29/14 402.00 24.530 16.39 2.139 90%
12/24/14 378.00 23.815 15.87 2.199 95%
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510 Posts
The never say the most fuel efficient pickup is the 5.7L HEMI on the commercials. they are referring to the little V6 pentastars and the ecodiesels. Your gears will suck up another 1L/100km minimum as well. Highway mileage with 3.21's is not bad at all once broken in. If you're not drag racing or towing 10,000lb trailers I would have stuck with the 3.21's
Same here, I am very light footed and only getting 550 km a tank. Now motor has only 700 km on it and I hear the motor needs time to break in but this bad boy sure is a thirsty truck ! Friend of mine has the Ford with the 5.0 and he gets well over 1100 km on a tank of fuel
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