2020 Ram 1500 Laramie Longhorn EcoDiesel 3.92 Gear Highway MPG Loop

[@BenMarar]

This Video can mislead many new RAM buyers. My 2021 fully loaded Laramie with 3.92 gets 29-32 MPG on the highway. Yesterday I returned from camping, it was 521 miles round trip road trip with 4 mountain passes on the way with 4 people in the cabin and full bed of stuff and trip computer says 29.8 MPG for 521 miles and 9 hours engine on. It’s freaking amazing truck!

[@braden9536]

Thanks for your input. I'm doing a bit of research on the Ecodiesel and this video left me a bit disappointed as the one on the lot near me has 3.92. Glad to hear somone else had a better experience.

[@BenMarar]

@@braden9536 Glad it was helpful. Also I think 3.92 gear works perfect with this engine. 2000 rpm is 72 MPH and 80 MPH I have 2200 RPM, so engine spins more happy then it would be with 3.21 with amazing fuel economy!

[@MrCurt54661]

Is yours 2wd or 4wd?

[@stevedawson378]

I just bought a 2021 Ram Big Horn with the Eco Diesel and 3.92 gear-- I have 27 miles on it! Making 26 mpg is a good start and may do a video myself. Indianapolis has the 465 loop which is about 52 miles-- we'll see.

[@andrewdavis6480]

Any kind of break in aside, I can just about guarantee you that limited is heavier with both the trim package and especially with the Ran boxes. I was super on the fence between 3.21 and 3.92 with the 2021 Ecodiesel I've ordered, but because I don't tow very often and the truck will primarily be a commuter / grocery getter, I ordered the 3.21 gears. My long term plan is to replace the gears with 3.55 (like I wish Ram would have offered with the ED from build) and also swap out the factory LSD with a helical LSD (what Ram should be be offering in the first place) once the OEM LSD clutch packs wear out. I'm pretty much thinking this may be the last internal combustion vehicle I ever buy 😂.

[@TRYtoHELPyou]

Adding 5 miles per hour over 70 takes a lot more energy. That ads a 35 percent increase of force. That costs mpg.

[@PMGiles]

Great video. I recently purchased almost the identical truck. 2020 1500 Longhorn EcoDiesel, 3:92 ratio, no air suspension either. I love it. I've been averaging 9.4 L/100km so far and I live in DT Toronto! Getting in and out of my condo garage is a pain as I'm on P4 so I lose a lot of fuel economy going up and down all the ramps. I'm moving home to BC in a week, hence why I bought the truck, not your typical DT Toronto vehicle. As a reference, my prior car was a 2020 BMW M340i inline-six that gave me an average fuel economy of 10.6 L/100KM. Granted that was a sports car that you just wanted to drive fast all the time! Happy to not be paying Premium Gas prices either! Keep up the great content.

[@daves1646]

Thank you for the objective look!! If you tow, I’m sure the 3.92 gearing will make for better towing performance and efficiency than a tall 3.21 gearing in diff’s. Thanks again!

[@Turvok]

I have a 2020 limited with eco diesel and get 30 mpg if I behave or 28 if I drive normally. Towing a 34 ft travel trailer (10,000 lbs) I still get about 15 mpg. So I'm very happy with it.

[@steve-o5859]

That’s great. What size tires/rims do you have on your rig?

[@Turvok]

@@steve-o5859 275\55 r 20 I believe

[@Jimmyjam241]

Dam good looking truck! I have a stock 2019 1500 Bighorn Hemi 3.92 26k miles now and I’m lucky if I see 17 mpg highway. Granted I do drive 75-80mph on my daily 100 compute.

[@earlpease1223]

My broken in 2020 Ecodiesel with the air suspension can get up to 33 MPG at 65 MPH.It gets up to 14 MPG towing an 8000Ib trailer.Yes.It has the 3.92 rear end and it tows like a dream !

[@5thGenRams]

The Limited we tested was a 2020 as well, I misspoke at the beginning by saying 2019.

[@jmanjr]

Nice test. Thank you

[@formerice]

The 3:92's lose mpgs after 65 mph. If you can keep under 65, they are very good. 100,000+ miles on my 2nd gen, averages about 30 mpg.

[@IceBergGeo]

I used to fill up at that gas station. I remember it was one of the most expensive fills I'd ever had, back when gas was near where it is now.

[@BillBrinkop]

Match the speeds exactly. Speed is one of the ingest factors for mpg.

[@rkalla]

4:35 damn very interesting capture in the RPM diff!

[@CSRacingUSA]

The fixed suspension has a spoiler underneath to save gas anyways, just like the one with air-suspension. As far as I was told, both drive at the same height but the one with air suspension can be lower or higher at low speeds... Excellent comparison tho!

[@l8tapex]

Reckless Motorsports has come up up with a improvement on torque convertor which helps , temps , hill climb off throttle usable torque etc and may help with MPG.

[@knightwing4]

I have a 2014 with a Hemi and. 3.92. It doesn’t seem to make much of a difference if you’re not really haulin’ ass. If you keep it below 75 it still gets between 20 and 21 mpg.

[@crane5161]

At Christmas time I bought a 2019 RAM Classic Laramie EcoDiesel with the gear ratio 3.92. And so far I've been quite impress with my truck. I would differently get another one down the road.

[@briangarfield9753]

First off, thank you for making this video. This is critical information for some of us before purchase and it's rare to get good comparisons. As I've read, the trucks without air ride get the front Retractable Air Dam. The trucks with air ride do not. In theory, there shouldn't be as drastic of a difference of air flow, but there likely is some. I noticed neither truck had an all-terrain, and seemed similar, but were they the exact same tire? Grip and rolling resistance, as well as tire weight, affect MPG. The exact tire specs are critical for a true MPG test. Did you happen to check inflation pressure on both trucks carefully? For highway purposes, 5 psi could make a big difference. The mileage is certainly a large factor if they're very different. But how much of a difference are we talking about? Looked like only 300 miles difference. Finally, you mentioned more steady state 70 mpg in the 3.92 truck while having more traffic with the 3.21. The lower speeds and other vehicles affecting (positively) the aero dynamics are again, big differences. I'd be happy to see an update with more mileage and some of the above considerations, if they've affected anything or were different. Thanks!

[@brent7368]

The air suspension lowers to a high way speed height -

[@MickPsyphon]

Aero mode makes a big difference, because it lowers the truck enough to improve aerodynamics. Drag is a huge factor affecting MPG of a vehicle. Also, once that EcoDiesel breaks in, the difference will be noticeable both at the pump and behind the wheel.

[@joshuakerstein9573]

Also the 22 inch wheels, better traction fresh tires easily Eat up .5+ mpg

[@MickPsyphon]

@@joshuakerstein9573 Good point! Wheel a larger diameter makes a difference, too; however, that mostly impacts city/local driving. If you do a lot of highway driving and use the cruise control, it's not as much of an issue. (Unless you have adaptive cruise control, which can result in increased fuel consumption.) Tyre tread can impact fuel consumption more than wheel diameter, though. If you don't intend to go off-road, or to tow/haul too much, then it's worth sticking with a tyre that has a high treadwear rating, which generally give you great efficiency. Otherwise, get the right tyres for the task at hand.

[@trevorforbes2382]

The air ride definitely helps !

[@noly927]

I like air ride because yust make sense but the price for air suspension on a ram it's 2000.00 up grade that is crazy

[@makerofmanythings8447]

Just a word of advice. If your going to get a Ram get a 5.7L Hemi. The ecodiesel eats it's own crap and before it has 40,000 miles on it the intake manifold will be caked up with 1/2" of oily soot that totally gums up the entire upper end of the engine..I know from experience with my 2016 Ram 1500 Laramie ecodiesel. The exhaust recirculation system is the same, so the same thing will happen to the 2021 model. I now have a 2019 Ram 1500 Laramie Longhorn loaded out and I am REALLY HAPPY knowing that I won't be having any EGR problems anymore. And I get 23- 24 miles per gallon on the highway, I don't speed I cruze with the adaptive cruise control set at 65 -70 mph. I absolutely loved my Eco diesel before the problems started kicking in around 18,000 miles in.

[@jeffbennett8093]

The 2016 ecodiesel is completely different from the 2020, 2021 ecodiesel engine.

[@vannfe11]

What axle do you have on your Hemi? I was going to get the ecodiesel 3.92 axle and then after research and reviews from diesel mechanics, am going with the 3.92 axle Hemi. I just wanted to see what mpg you get with which axle. I need to tow a min of 7000 with horses so I need that 3.92.

[@vannfe11]

What axle do you have on your Hemi? I was going to get the ecodiesel 3.92 axle and then after research and reviews from diesel mechanics, am going with the 3.92 axle Hemi. I just wanted to see what mpg you get with which axle. I need to tow a min of 7000 with horses so I need that 3.92.

[@makerofmanythings8447]

@@vannfe11 392.is all I ever wanted in a rear end. They are the best in my experience.

[@galaxyfz]

In your opinion, which truck had a better ride quality between the air suspension and conventional coil springs?

[@stgraves260]

I’m guessing there will be a 5-6 mph difference between the 3.92 and the 3.21 gears.

[@smrtguy77777]

I just don’t picture a need for the 3.92. The 3.21 will have zero issues towing 13K even at grade considering considering the 8speed and 480lbs of torque. I’d much rather have the extra 2-4mpg.

[@chrisblackasr7095]

I have the 2016 Laramie longhorn ecodeisel and I got 18-19mpg in the mountain town I live in. In the morning when I would leave for work i would pull out into traffic the truck would lose power for a second and then take off. I have almost been t boned because of this. So I recently put a stealth module in the increase the gas mileage and hopefully boost performance. It has helped a little bit and I am getting better fuel mileage.(about 20-21mpg in the mountains). Still little lag but if anyone has any better suggestions let me know

[@TheSlickpt]

3.92 diff is the biggest factor here for the difference. Another 1 is you tire size is the smallest circumference of the entire lineup. If you just changed out your tires to 285 50 22 or swapped rims and went to the 275 60 20's your rpm at 110km/h would be about 1750 . I'd bet you would get half a litre per 100 better just making this one change.

[@texastackycal7979]

My truck has eco 18 inch wheels , that white one might have 20 inch wheels. That’s could make a huge difference

[@Kingswood7189]

My '10 dakota (3.7l v6, 4-speed auto, rwd) with 3.55 differential (I believe) has gotten 22 mpg going 70 mph on road trips. I still want an ecodiesel or 1/2 ton diesel pickup. :)

[@hikethisplanet1017]

I pull a Jayco trailer with my 2020 Longhorn Eco-diesel in good conditions I get about 12 litres per 100 km's. That incredible. But if I hit a strong headwind, my fuel economy drops to about 14.5 or 15 km's per 100 km's. But thats a really strong wind. 70 -80 km's an hour. The trailer is about 5,000 lbs dry. It's 30 ' long tip to tip.

[@douglashardy177]

Do you have the 3.92 rear gear?

[@hikethisplanet1017]

@@douglashardy177 No I have the 3:21 gear ratio rear end. I can't pull as much as a truck with the 3:92, but i still can pull 7500 lbs. And for me thats more than enough. I recently sold my Jayco and bought a a Grand Design Imagine, it weighs 5600 lbs and I get about 13 mph now. Still very good.

[@hikethisplanet1017]

OOOOOPs thats 13 litres per 100 km's LOL

[@braden9536]

Any chance you have re-run this test yet?

[@DoubleTap702]

I’m gonna go with the 3.92 so that I can throw some bigger tires on it and possibly get better fuel mileage than stock haha

[@carlos33193]

I average 11 mpg with my 37" tires and 3.92 gears, with air suspension. 🙂

[@richardpasha9332]

@@carlos33193 ecodiesel?

[@scottpearce7466]

3:92 better for in town. Gets off the line up to speed quicker. Doesn't grunt towing.

[@Marvin-fn7ks]

I had a 2015 4x4 Longhorn Eco Diesel with air ride . I now have a 2020 4x4 Longhorn Eco Diesel without air ride and 3:21 axles. I have under 3000 km so far . I feel the mileage is better than the 2015 by 1lt/100km average. In mixed driving I am averaging 9.3 Lt/100km. My highway Mpg is 7.5 Lt/100km average . Also because it doesn’t have air ride there is an automatic front air dam that lowers at highway speeds to improve aerodynamics.

[@JustinHallowesOutdoors]

yep my next truck will not have the air ride.

[@sniper60605]

That’s still great gas mileage for a full-size pick up truck. Or should I say diesel mileage…

[@purplepants491]

6:36 how do you switch the units from metric to imperial?

[@JustinHallowesOutdoors]

good. I have a 2014 sport and the compressor went just when warranty ran out. and 2 years 1 month latter. I removed it and will never get it again.

[@RockyRohde]

Nice video!! Just did 4” bds on 2020 limited with 35” tires and 3.92 gears on my channel.. still getting 18-20 at 78-80 mph

[@St3v3-0]

How's the ecodiesel treating you?

[@keenerwood7533]

When you get the steel suspension doesn't the front air dam lower at highway speeds to help with aerodynamics? I have a 19 Laramie Sport with 5.7 Hemi with e-torque, air suspension, and the 3:21 gears. The best highway mileage I've attained so far is 10.8 from Edmonton to Calgary at 110 kph. Wind was a factor that day so I think I can squeak out just a little better than that, maybe 10.5.

[@hammerheartdan6311]

Keener Wood 10.5L/100km is really good for a gas truck!

[@OMNS777]

I’m seriously considering the eco diesel 4x2. Should I bite the Bullet? My goal is daily driver and highway road trips and occasional trip to Colorado from Texas. Thoughts and recommendations appreciated.

[@chyroletor4806]

perhaps abit off topic, but what do you think about the ride quality, comfort and noise level of the diesel variant compared to the gas variant?

[@billcoley8520]

If I wanted a dodge 1500 with ram boxes for pulling a 6x6x12 enclosed trailer with pressure washing stuff inside what would I need for a perfect truck. I just do not know anything about motors, or transmission, or rear ends

[@rkalla]

The base v6 will do fine and be the cheapest. Anything more is fine but would just be for your own comfort/preference.

[@mattmcclain3369]

i would have guessed a loss of 3-5MPG and dang i was in the park with my guess and between the 3.21 and the 3.92, i would guess 1-1.75MPG loss between the 3.55 and the 3.92

[@marcosantorini9309]

Nice video...thank you...did you want 3:92 or it just came with it? Was there any noticeable difference in initial acceleration between the 3:31 & 3:92? Now after a few months which gear ratio do you prefer?

[@alexcoombs9166]

I see that truck for sale now at white rock Chrysler

[@DeepPurpleAreKings]

What's wrong with the black color?

[@billcoley8520]

Which is better for pulling

[@stgraves260]

Ok put your thinking king caps on and see what y’all think. The eco diesel and I would probably say diesels in general have their max torque around the 1500 -1800 RPM range. So sense diesel trucks are made for towing and are for the open road, and now days the speed limit is 70-80 MPH I have seen 85 MPH. With the 3.92 gears at the 2000 RPM range your max torque range is down. Your motor is struggling to pull at those speeds. At 2000 RPMs your torque is down. It may even drop down to around 350 FT-LBS. That being said if you have the 3.21 gears at 70 MPH your engine RPMs are in the max torque range of that 1500ish RPM range. This is just food for thought. Think about it.

[@donbachek49]

For those of you with the eco diesel (I noticed that some of you were in Canada) how fast or slow does it take to warm up? I hate to ask but does it do okay as a grocery getter, stop and go, etc? I have a deleted Cummins and it’s okay....takes a bit to warm up. My wife is looking for a truck and we are trying to get something “economical” yes still pull our boat.

[@earlpease1223]

My 2020 Ecodiesel is ready to go immediately,but I wait about 30 seconds before driving.If you will be doing a lot of stop and go driving you should take it for a 20 to 30 minute highway drive every so often.

[@BCJ371]

What is your door sticker payload on the truck?

[@RAM-KINGOFTRUCKS]

Love the comparison , I'm filling up my Hemi in Coquitlam BC damm cheap ..but cant go out much..lol..😩😩

[@alexanderdeburdegala4609]

Could you share what highway speed you use in MPH? I also got a 2020 Laramie Longhorn EcoDiesel I do have the air suspension. Speed makes a huge MPG difference for me. If I keep it under 70 MPH I get around 27-28 MPG but if Blast down the highway over 70 MPH It drops to 24-25. I also have the 3.21 rear around 8 thousand miles. How you doing on DEF? I am almost on my 3rd fill up before 10k. Not amused about that one. Hey we got the same color painted bumper and all lol.

[@shanebrown2963]

Delete it. Pick up fuel mileage, no more def, and better for your engine. Its a win win!

[@matteodidonato1662]

Any updates on the performance and how the EcoDiesel is doing?

[@eclipes00]

Nice looking truck

[@robertclark2290]

Is this a four wheel or two wheel drive? I am looking to buy one and bring to decide if I should get the 4x4 or not.

[@GYPSY400]

If you live in a snow climate, get the 4x4.

[@robertprendin5592]

Everything I've read says the 2020 diesel Longhorn does have active noise canceling. You mentioned it does not ?

[@bertallen9820]

it would be depend on the engine type you get. eco diesel doesn't need it. hemi needs it and has it.

[@jmtjmt-jo7zj]

Have you done another mpg loop?

[@patrickslocum5386]

Is that the 22in rims?

[@dagwoodsingleton6202]

Gears say it all.

[@williamvangorden44]

What country are you in what's the name of the country? Because this country uses gallons . This is getting very interesting.

[@aaronnichols7903]

are you in surrey ?

[@johnrancier1567]

I got a 2015 with 392 air ride and I get 6.8 to 7.2 /100 and 78000 km on mine. Recommend oil change every 6000 km that’s what I did and never have a problem. Fuel filter at 50000 km and a cold air intake

[@dad2817]

So your ram gets 40 miles per imperial gallon ? Or 35ish US gallon?

[@seagullsbtn]

Weather? Temperature? Active aero dam?

[@1Pueblito]

Which gear ratio would you recommend?

[@rkalla]

3.21 if you only care about mileage and don’t tow. Otherwise 3.92

[@stephengalvan7722]

392 gear are much better for towing

[@noly927]

It's not suspension it's gear 3.25 vs 3.92 come on of course the 3.92 it's less mille because the tire it's spinning less .but it's better for towing up a hill .....

[@rickling377]

I hjave a 2020 1500 ecodisel and it is the worst towing vehicle i have driven. very bouncy doesn't feel stable on the highway. Trailer is a 4500# double axle, I have pulled it with a Tundra and had no issues.

[@vannfe11]

What axle ratio do you have on the eco?

[@vannfe11]

What axle ratio do you have on the eco?

[@johnlemme1603]

have a friemd who has a tundra,had it ligned up,machanic said there was Nothing i/2 Ton underneath, m oder like 3/4 ton,1 ton!

[@Despot1389]

And that truck is heavier

[@toddbunnett640]

disappointing . . . . 9L/100km. Ya that's awful. I'd be crying about that too lol.

[@jacqueszabala9579]

Muestre la camioneta, no su cara !!!