Highway Mileage What Are You Getting

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Pezrock

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My 2017 Ram 5.7 quad cab all stock I averaged 19.5 to 21.0 when I had 20K on her. I now have a 2019 Classic Warlock quad cab all stock and same tires and tire pressure as the last Ram. I am now averaging 15.7 to 17.0 for the same 2 hour trips I make every weekend. The only difference is the truck only has 1200 miles on it and I installed in channel vent visors. I expected a lower average during break in period but not 3 miles less per gallon. These trucks are almost identical except for the vent visors. I am not driving at high elevations either. Thoughts and experiences?
 

NJMOPAR

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I tell everyone who asks:
It's a Hemi. You get smiles per gallon.

Personally I've never done better than 10 around town and 16 on a highway run on any Mopar V8 since I started driving them in 1974. YMMV. :D
 

Jtblackram

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On long highway trips, with my MDS System disabled, i get roughly 19-20
 

Richg87

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I have 857 miles on my 2019 Warlock Quad Cab V6. So far I’m seeing 19 to 21.3. Mostly highway driving.
 

OtterOS

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On my 5th gen crew with v6 I’m getting 19-22 highway normally.


Sent from my iPhone using Tapatalk
 

scott lass 18

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My 2017 Ram 5.7 quad cab all stock I averaged 19.5 to 21.0 when I had 20K on her. I now have a 2019 Classic Warlock quad cab all stock and same tires and tire pressure as the last Ram. I am now averaging 15.7 to 17.0 for the same 2 hour trips I make every weekend. The only difference is the truck only has 1200 miles on it and I installed in channel vent visors. I expected a lower average during break in period but not 3 miles less per gallon. These trucks are almost identical except for the vent visors. I am not driving at high elevations either. Thoughts and experiences?
mine upgrades 2010 17 mpg on road a californa bs cp up date use to get 21.6 tops
 

huntergreen

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My 2017 Ram 5.7 quad cab all stock I averaged 19.5 to 21.0 when I had 20K on her. I now have a 2019 Classic Warlock quad cab all stock and same tires and tire pressure as the last Ram. I am now averaging 15.7 to 17.0 for the same 2 hour trips I make every weekend. The only difference is the truck only has 1200 miles on it and I installed in channel vent visors. I expected a lower average during break in period but not 3 miles less per gallon. These trucks are almost identical except for the vent visors. I am not driving at high elevations either. Thoughts and experiences?

something is different to cause that much difference. Try a different gas station.
 

gofish101

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Previous Ram got just under 21 mpg with factory tires and 3.21 gears on 2000 mile highway trips. The Ram I'm driving now gets close to 19 with LT and 3.92 gears.
 

Joshua Collins

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Possible that the 2 trucks had different gear ratios? Also the front of the war lock is not as aerodynamic which does make a difference when you drive a rolling brick as we do.
 

texan279

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17-18 highway, 14-15 stop and go. I have a bit of a heavy foot.
 

Livinalittle

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The best I can get is 18 mpg if I cruise the speed limit. For daily driving I average about 14 mpg.... but my truck is not a fuel efficient combo.

5.7L hemi, 6 speed and 3.92. It's a sport thru and thru.
 

bobeast

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Average for me is 19.1 with mostly highway. Haven't tried resetting and checking before a long highway trip, but I would guess somewhere around 21.

2017 5.7 with 3.21
 

Bigskyroadglide

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2011 ram 5.7, 3.55s, 4x4 crew cab, with after market wheels, Cooper AT3s and Diablo tuner run 91 tune. 145k on clock

I get 18.6 on avg running real gas at 80 mph.

If I run corn gas it drops to 16.5.
 
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Pezrock

Pezrock

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Possible that the 2 trucks had different gear ratios? Also the front of the war lock is not as aerodynamic which does make a difference when you drive a rolling brick as we do.
Both trucks 3.21 gear ratio. My 17 and 19 trucks are literally apples to apples. Grill is different but don't think aerodynamically there is much difference. Could the vent visors possibly cause any noticeable MPG loss?

What are you guys finding as a sweet spot for MPG while on the highway? My 17' was 73 MPG. The 19' I have not yet figured out.
 
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Pezrock

Pezrock

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Average for me is 19.1 with mostly highway. Haven't tried resetting and checking before a long highway trip, but I would guess somewhere around 21.

2017 5.7 with 3.21
I was in the exact same spot with my 17'.:)
 

RVGuy

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Doesn't the Warlock have a 1" lift from the factory compared to other 1500s? I mean, it doesn't account for the entire difference in mileage you're seeing but I'd expect it to be a little worse just from that.

My '15 (6 speed though) does about 20mpg on the highway in perfect no wind conditions on flat ground with MDS off. I have 3.55 gears and heavier LT tires than stock but that's it. My fuel economy seemed to peak at about 75,000km on the odometer (my average at that mileage was around 22mpg), then dropped a little bit and has remained constant. I'm now at 260,000km.
 

MileHighRam11

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I have a 50 mile commute to work and I consistently get 19-20mpg. Not too shabby for a nearly 3 ton truck with a V8. Now city miles...that's a whole different story ha
 
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Pezrock

Pezrock

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Doesn't the Warlock have a 1" lift from the factory compared to other 1500s? I mean, it doesn't account for the entire difference in mileage you're seeing but I'd expect it to be a little worse just from that.

Interesting point.
 

mtofell

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Winter fuel can change things a lot so be sure we're all comparing apples to apples.

"Break-in" of a vehicle is one of the more laughable MPG subjects on the net - what exactly is getting "broken in?" Are there little squirrels in the engine that need to get in shape?

73MPH is not a MPG "sweet spot" for any vehicle. There's a reason 55MPH was set as the national max around 1980 - to save fuel. Other experiences are either conformation bias or had other factors that weren't taken into account (most likely a tailwind and/or driving downhill).
 
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