Mpg

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Easygoin

Junior Member
Joined
Jul 25, 2022
Posts
7
Reaction score
3
Location
Salem, Or.
Ram Year
2011
Engine
5.7 Hemi
I have a 2011, 5.7 with the engine management system. It runs great and I truly love the truck, first Dodge PU I've owned, but 11 mpg seems excessively bad. The only mods are the 35 inch tires on factory 20 inch wheels. Somebody please tell me there is something I can do to improve the mpg. Any constructive input would be appreciated.
 
Joined
Nov 20, 2018
Posts
0
Reaction score
63
Location
Riverside California
Ram Year
2018 2wd
Engine
HEMI 5.7 Revolution 4.88s
That's as good as you will get around town ... you might get int he high 13s if you do a lot of freeway driving .. also if you have the stock gears, 3.21s, 3.92s , you are not going to get the correct MPG ....

With 35s you should really consider regearing to 4.56s if you want to improve on your MPG and also correct the speedometer if you haven't already ...
 
OP
OP
E

Easygoin

Junior Member
Joined
Jul 25, 2022
Posts
7
Reaction score
3
Location
Salem, Or.
Ram Year
2011
Engine
5.7 Hemi
I have only had the truck a few months now. I was planing on replacing the 35 inch tires with 33s when they need replaced. Not sure how to go about finding out what gearing I have. I drive the truck very little in the summer, but will use it almost daily in the winter. Golf course, 15 miles of highway and small boat to the lake, 60 miles of highway. It has so much power I don't think re gearing would hurt around town performance, but might really help the highway mpg. I'll look into. Thanks
 

crackerjack1957

Senior Member
Joined
Sep 26, 2015
Posts
2,016
Reaction score
2,379
Ram Year
2014 Sport 1500 CC 4x4
Engine
Hemi 5.7...65RFE...4.56
Go back to 33's & a highway tread if you are concerned with mpg........a lift & aggressive tread/heavy tire will cut 2-4 mpg is a fact......
 

UnleashedBeast

Junior Member
Joined
Aug 28, 2017
Posts
9
Reaction score
11
Location
Pensacola, Fl.
Ram Year
2019 Classic Big Horn
Engine
Hemi 5.7
Go back to 33's & a highway tread if you are concerned with mpg........a lift & aggressive tread/heavy tire will cut 2-4 mpg is a fact......

Agreed, that is the problem. The lift kit and heavier 35" tires are killing your mpg. Lower the truck to stock height and return to 33" street tread tires to increase it.
 

Black1500Ram

Senior Member
Joined
Jul 18, 2021
Posts
432
Reaction score
642
Location
Scottsdale, AZ
Ram Year
2015
Engine
5.7 Hemi
Be careful about wheel and tire selection also. 17’s will be much lighter than 20’s (I’m currently in the midst of that swap). Tires are about a wash weight wise at 55lbs for LT tires.

You can get passenger tires if you’ll never go off pavement but buyer beware. They will be about 10lbs lighter per corner but you’ll be susceptible to flats much more.
 

Nova John

Senior Member
Joined
Sep 10, 2018
Posts
139
Reaction score
93
Location
South Plainfield New Jersey
Ram Year
2011
Engine
hemi 5.7
This is my third Ram in 17 years. Have intake, exhaust and canned tune on a 2 wheel drive short bed truck. Gas mileage is 16 around town and 21.5 highway. I also have 392 gears and 265/70/17 tires. My son has 2014 Ram club cab 4x4 and got decent mileage until he went with 35 inch toyo's and a slight lift and leveling kit. He lost between 3-4 mpg. I guess the extra tire weight and lift raising the height of the truck really makes a difference. In my 17 years owning the rams only repairs made was one wheel speed sensor, that's all. No problems just really kept up with all the maintainance and used PUP synthetic oil. Total of over 220,000 trouble free miles and I tow a boat and camper. Best trucks ever and I have had Ford and Chevy trucks too.
 

Snoopy

Member
Joined
Dec 27, 2021
Posts
51
Reaction score
25
Location
NE Ga
Ram Year
2012
Engine
Hemi 5.7
Good grief with the tires and wheels you vacc are running what do you expect???
 

Zoe Saldana

Senior Member
Joined
Nov 12, 2020
Posts
914
Reaction score
764
Location
california
Ram Year
2016
Engine
6.4l
I have a 2011, 5.7 with the engine management system. It runs great and I truly love the truck, first Dodge PU I've owned, but 11 mpg seems excessively bad. The only mods are the 35 inch tires on factory 20 inch wheels. Somebody please tell me there is something I can do to improve the mpg. Any constructive input would be appreciated.
Did you adjust the gauges for the larger tires?
 
Joined
Nov 20, 2018
Posts
0
Reaction score
63
Location
Riverside California
Ram Year
2018 2wd
Engine
HEMI 5.7 Revolution 4.88s
The more and more I see what MPGs some of you guys are getting with stock trucks the more I smile lol .... I get close to 15 in town quite often which is probably 14 in reality and close to 20 on highway with the 37's on some 20x12s with 4.88s muahahaha !!!
 

Wes Veness

Senior Member
Joined
Dec 3, 2019
Posts
248
Reaction score
284
Location
Winnipeg, Manitoba, Canada
Ram Year
2019 SLT Classic
Engine
5.7 Hemi
That's as good as you will get around town ... you might get int he high 13s if you do a lot of freeway driving .. also if you have the stock gears, 3.21s, 3.92s , you are not going to get the correct MPG ....

With 35s you should really consider regearing to 4.56s if you want to improve on your MPG and also correct the speedometer if you haven't already ...
Right!!! Mine didn't move when I put my lift on and added 35".... Makes you really wonder hoe some of them are driving their truck cuz I don't baby mine and my fuel consumption it pretty good considering what others are getting.
 

jib88fer

Junior Member
Joined
Jan 29, 2018
Posts
26
Reaction score
23
Location
Hiding in the Hills, TN
Ram Year
2015
Engine
5.7
Just sayin', I went from 66# 305/55 Falken Wildpeaks to 39# 275/60 Michelins and gained an instant 2mpg. Now the Falkens are for sale, at least until gas his $1 gallon again....
 

Black1500Ram

Senior Member
Joined
Jul 18, 2021
Posts
432
Reaction score
642
Location
Scottsdale, AZ
Ram Year
2015
Engine
5.7 Hemi
The more and more I see what MPGs some of you guys are getting with stock trucks the more I smile lol .... I get close to 15 in town quite often which is probably 14 in reality and close to 20 on highway with the 37's on some 20x12s with 4.88s muahahaha !!!
Are you 2wd? Just curious how you’d get 4.88 in the front if you’re 4wd
 

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
13,725
Reaction score
23,401
Ram Year
14 Sport
Engine
5.7
Are you 2wd? Just curious how you’d get 4.88 in the front if you’re 4wd
You can't put 4.88's in even the earlier AAM (corporate) 1500's front diff,and yes he's 2wd.Don't get him started ;). I think Dilligaff will have alot to say,if this carries on :waytogo: :Big Laugh: This has been already argued to death ,hopefully it doesn't start all over again.The only way to put 4.88's under the front end of a 1500,is to swap to the earlier 2500's solid front axle,and lose the 1500's IFS diff
 

Black1500Ram

Senior Member
Joined
Jul 18, 2021
Posts
432
Reaction score
642
Location
Scottsdale, AZ
Ram Year
2015
Engine
5.7 Hemi
You can't put 4.88's in even the earlier AAM (corporate) 1500's front diff,and yes he's 2wd.Don't get him started ;). I think Dilligaff will have alot to say,if this carries on :waytogo: :Big Laugh: This has been already argued to death ,hopefully it doesn't start all over again.The only way to put 4.88's under the front end of a 1500,is to swap to the earlier 2500's solid front axle,and lose the 1500's IFS diff
Haha ok ok 2wd got it
 

UnleashedBeast

Junior Member
Joined
Aug 28, 2017
Posts
9
Reaction score
11
Location
Pensacola, Fl.
Ram Year
2019 Classic Big Horn
Engine
Hemi 5.7
Right!!! Mine didn't move when I put my lift on and added 35".... Makes you really wonder hoe some of them are driving their truck cuz I don't baby mine and my fuel consumption it pretty good considering what others are getting.
The more and more I see what MPGs some of you guys are getting with stock trucks the more I smile lol .... I get close to 15 in town quite often which is probably 14 in reality and close to 20 on highway with the 37's on some 20x12s with 4.88s muahahaha !!!

Are both of you hand calculating MPG or relying on the lying dash readout for MPG?

I use the fuelly app on iPhone to calculate every fill up.
 
Top