New truck - towing questions

xdrxdr Member Posts: 39
We brought a 2020 Ram 1500, 5.7l V8, 3.92 rear axle ratio and the trailer tow package. We now have ~1000 miles towing our 2021 Tab400 BDL with it. I am a bit surprised by the mileage - we are getting on average 10-10.5 MPG towing. Without the trailer, combined mileage is ~16 MPG and 19-20 open road MPG. We do live at altitude - 5K' +. 
Should I consider the towing mileage typical for a V8 gas engine?
I keep wondering if I should have purchased the eco-diesel Ram. 

Comments

  • VernaVerna Administrator Posts: 5,672
    Typical across the board for the Big 3. 

    My Ford F-150 V6 Eco-Boost gets 20 to 24, not towing, then it goes down to 12 to 15 towing. I have not had it in any mountains except Tennessee last fall. 
    Verna, Columbus, IN, 2019 [email protected] 400 Boondock Lite white/red, towed by a white 2019 Ford F-150 4x4 Supercab, 3.5L V6 Ecoboost; [email protected] Administrator
  • CbusguyCbusguy Member Posts: 777
    edited May 19
    Sounds about right.

    Looking at a diesel for my next truck.    Not sure I am liking the emissions and related failures.  The def fluid is an issue and reading about reduced power mode after 50 miles is a no go for me.....

    I will pay the fuel economy penalty with standard fuel.
    2009 GMC Canyon,   3.7 liter 
    2020 320s Boondock lite, With Lots of mods
  • DougHDougH Member Posts: 606
    @Cbusguy ; I'm waiting to see what the mileage is like with the diesel Jeep Gladiator so I can get the off road version of the [email protected] 500 with 1000W of solar.  But spouse and I have driven diesels for years and love the mileage.  I often get over 50mpg averaged over a road trip when not towing the 320, and get 20-32mpg when towing (depending on wind and terrain).  However, like you mentioned, wife had one DEF sensor failure already on her diesel SUV, and it was $$$ to fix.
    2014 328d diesel wagon, 2016 [email protected] S Max, D/FW Texas

  • TampakayakerTampakayaker Member Posts: 109
    Sounds about right.

    I have a 2006 Ram 4 door.  In FL on the interstate I can get 22- 24 MPG on cruise control without the [email protected]

    With the [email protected] I get 12-15 at best.
    2006 RAM 1500 4 door, 2016 [email protected] 320 MAX S 
    Tampa FL
  • qhumberdqhumberd Member Posts: 12
    @xdr We just took delivery of our 2019 TAB 400 BDL and drove it 400 miles from Columbus back to TN and we got 11-12 mpg on our Toyota  Tundra Crew Cab 5.7 V8 (I believe the same engine size you have). We get 15-16 not towing. We were on interstate going 60 mph average for most of the trip.

    2019  [email protected] Boondock Lite

    2016 Toyota Tundra 5.7 Crew Cab
  • gspdxgspdx Member Posts: 179
    Same here with a 2018 F-150.  My numbers are similar to Verna's.  I would look at the cost of the diesel and see if it makes sense to go that way.  They are very spendy and I am not sure the increased mileage will pay for it.  
    2019 [email protected] 400 BDL
    2018 Ford F-150 2.7L Ecoboost with tow package
    PNW
  • AirBossAirBoss Member Posts: 138
    edited May 19
    Seems we all share your pain! Yep, that's about right. I'm '04 Chevy Tahoe, 5.3L V8 with OEM tow package. Get 12-14MPG towing. 

    And when gas was selling at $2.79/gal here in CA for a while I felt like I was 16 years old again. Gas was cheap...and I'm on Restriction! 
    2019 [email protected] 400 Stndrd w/solar;3-way fridge
    '04 Chevy Tahoe Z71 5.3L Dino-killer
    San Diego, CA
    www.vividimagex.com
    www.airbossone.com
  • xdrxdr Member Posts: 39
    Nice to know that I am in the ballpark MPG wise...thank you all. I assume as the truck gets more broken in, the MPG will improve slightly. 
    Thanks again for the feedback. 
  • DenisPDenisP Member Posts: 302
    My Tundra 5.7l averages 11.5 mpg towing our 400 depending on terrain. I budget 10 mpg which gives a buffer for actual mileage. On a long trip cross country (9500 miles total) which included 12 Us National parks and 4 Canadian NP, we averaged 12.4 mpg which included towing and excursions. 
    2018 [email protected] 400 with Solar
    2013 Tundra TRD 5.7L
    Massachusetts
  • NorthIsUpNorthIsUp Member Posts: 96
    In comparison, our Toyota Sequoia with the 4.7L V-8 gets about 16 MPG normal and 10 MPG towing our 400 including a trip to/from the Sierras to uCamp2019 and back over seven weeks. Winter mileage is 5% worse. 
    Jean & Arnie  NorCal 
    2019 [email protected] 400 BL aka [email protected]
    03 Sequoia


  • xdrxdr Member Posts: 39
    I did a comparison with a friends Nissan Titan diesel. He tows a small trailer ~800 lbs heavier than our Tab400. we did a trip together this last weekend. He averaged 13.5mpg while I was at 10.5mpg. I used that data to build a model in excel. Based on a theoretical 2800 mile trip, the cost delta was smaller than I thought. the model assumed both trucks have the same size fuel tanks and the fuel cost were taken from an app my wife has on her phone. The model needs lots of refinement, but at first glance, using the Nissan diesel example, the cost savings is quite small...diesel = better mpg but higher fuel costs and higher purchase price. 
  • MuttonChopsMuttonChops Member Posts: 709
    xdr said:

    ..diesel = better mpg but higher fuel costs and higher purchase price. 

    And in many cases higher annual maintainance costs.
    Don't get me wrong I've owned and love diesel power . . . but
    First due to patent rights the Big-3 would never pay**
    Second Big-3 charging outrageous (not justified) cost added
    Third on-going EPA war (right or wrong) against diesel emissions.
    Means diesel except for commercial truck is going away . . . some type of electric to follow
    ** Dr Diesel could not get US Auto Makers to pay for the use of his engine.  It was cheaper for them to stay with gasoline.
    Another good example is the Phillips Screw Head, Dodge came up with it so they would not have to use & pay for the Roberts Head . . . Canadian square drive.
    Free market capitalism does not equal best solution.

    2018 [email protected] 320 Spitched axle, 3020HE
    TV: 2017 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
    Adventures:  23       Nights:  155 
  • CbusguyCbusguy Member Posts: 777
    edited May 21
    Yep these workers doing deletes on the diesels are going to hurt the rest of us

    Pretty sure I didn't post worker—you didn’t, as I changed the language—Verna.
    2009 GMC Canyon,   3.7 liter 
    2020 320s Boondock lite, With Lots of mods
  • pthomas745pthomas745 Member Posts: 1,189
    edited May 20
    I have a VW Touareg diesel.  I can get 18mpg while towing along at 60ish on an interstate.  And even higher MPG on main roads that are not interstates and have lower speed limits, averaging 55 or so.  With a nice tailwind or on a long downhill trip, I've even seen up to 25mpg. 

    The Touareg is a 3.0 liter diesel, 240 HP  I did a quick look at Nissan Titans, and the "standard" engine for 2019 was "5.6 liter, DOHC, direct-injected V8".  400HP.  In other words:  huge.  And, it would be way overkill for a TAB with a 9000 to 12000 lb towing capacity, depending on the year.  Even my T-Reg is rated to 7700 pounds and is overkill, but the towing mileage is pretty decent.  Buy a big engine, and expect to pay more for fuel.
    Most of the "what is a good tow vehicle" threads wind up in the same ballpark:  buy a big V8.  It may not be the best choice for Tab products.



    2017 Outback
    Towed by 2014 Touareg TDi
  • Tundra57Tundra57 Member Posts: 434
    Apart from the motor, IMO the tow vehicle must be heavier than the trailer. Just because the frame and suspension will handle a particular towing weight, doesnt mean it will be stable, especially when the trailer weight approaches the actual weight of the TV (nothing to do with tiwing capacity).
  • Denny16Denny16 Member Posts: 470
    Agreed Tundra, I tow a Tab 400 with a Jeep Gladiator V6 Pentastar will make 285 horsepower and 260 pounds-feet of torque, and get 14 -16 mpg at 50-60 mph.  Max towing capacity is 600/6,000 lbs, which I consider about right for the  TaB 400.  Quite a few TaB owners who start out with mid size SUVs end up getting a mid size truck.  Traveling Robert and Patrick of Travels with Delaney, ended up trading to a larger mud size truck TV.  
    Cheers
    2018 TaB400, Jeep Gladiator truck, Northern California Coast
  • ChrisFixChrisFix Member Posts: 87
    Another big difference between mid-size trucks and SUVs is wheelbase, which is another important towing factor...the longer the better, and other than truck-based SUVs (like Surburban/Tahoe), the mid-size pickups have at least a 10" longer wheelbase than large SUVs (VW Atlas, Kia Telluride, etc). The Honda Ridgeline, which everyone says is a Honda Pilot with a bed, has a 14" longer wheelbase than the Pilot, and that actually does make it tow better.
    After two years of looking and considering...finally the proud owner of a 2021 [email protected] 400 Boondock!
    2020 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
  • CbusguyCbusguy Member Posts: 777
    Agree with Chris wheel base on TV is important longer is better for towing.......
    2009 GMC Canyon,   3.7 liter 
    2020 320s Boondock lite, With Lots of mods
  • tabiphiletabiphile Member Posts: 171
    The ideal TV has lot's of motor, a strong truckish frame and rear wheel drive with selectable 4 wheel drive. Anything else involves compromises. The towrag is all wheel drive...that works.
  • xdrxdr Member Posts: 39
    Well, I have plenty of wheelbase, selectable 4wd and more than enough motor judging by its appetite 🙂. Actually I do really like setting the cruise control and the truck just motors up whatever grade comes our way.  That’s were the V8 shines-along with the 8 speed transmission. 
  • Denny16Denny16 Member Posts: 470
    edited May 26
    Your MPG is less because of the low gear rear end in your truck, which requires higher engine rpm.  My Dakota had the lower rear end for towing. which was part of the tow package to handle heavier trailers.  The lower gear ratio eats your MPGs.  On my Jeep Gladiator, I opted for the higher gear rear axle ratio on the Sport S, which is more than enough to handle thenTaB400.  The Gladiator also has a longer wheel base than my Dakota did, and I am getting 4-6 more mpg too.

    Good luck with your new Ram, it is more than adequate for your TaB.
    2018 TaB400, Jeep Gladiator truck, Northern California Coast
  • 4ncar4ncar Member Posts: 641
    Had a Jeep GC with the ecodiesel; loved it. Put 90,000 miles on it, bought it with 60,000. Towing a 320s, got 20mpg (Hwy) and 37with out trailer (Hwy). I traded it for my Colorado Mini dura Max. I get similar performance.

    torque is what you want: torque gets you to speed, horsepower keeps you there.

    both trucks serve me well, fuel is more costly, but the MPG offsets the number of times your at the station! Yes, sensors fail and need to replaced, but so do sensors(O2) on gas.  Def is cheap.

    neither truck ever left me on the side of the road.
    TV- '16 Chevy Colorado LT Crew Cab-DuraMax
    2018 320S Outback
  • PintoplumberPintoplumber Member Posts: 26
    Denny16 said:
    Your MPG is less because of the 3:92 low gear rear end in your truck, which requires higher engine rpm than a 4:10.  My Dakota had the 3:92 which was part of the tow package to handle heavier trailers.  The lower gear ratio eats your MPGs.  On my Jeep Gladiator, I opted for the higher gear rear axle ratio on the Sport S, which is more than enough to handle thenTaB400.  The Gladiator also has a longer wheel base than my Dakota did, and I am getting 4-6 more mpg too.

    Good luck with your new Ram, it is more than adequate for your TaB.
    I think you have your explanation reversed in your 1st sentence. A 4.10 ratio will require 4.1 revolutions of the driveshaft to get 1 revolution of the axle. More rpm’s than the 3.92. I changed the rearend in my ‘54 F100 from a 3.92 to a 4.27 for drag racing and towing. Dennis
    2016 320 CS-S  1994 Chevy suburban 1954 Ford F100
  • Denny16Denny16 Member Posts: 470
    You are right, got it the wrong way round.  Thanks.
    cheers
    2018 TaB400, Jeep Gladiator truck, Northern California Coast
  • webers3webers3 Member Posts: 140

    The discussions about TVs always amuse me; we buy the smallest trailer we can and look for the largest tow vehicle to tow it, ironic.

    2017 [email protected] 320S   2019 Jeep Cherokee - Southern Connecticut
  • Denny16Denny16 Member Posts: 470
    Yes, yes it is.  But the TaB 400 is not that small, weight wise.
    cheers
    2018 TaB400, Jeep Gladiator truck, Northern California Coast
Sign In or Register to comment.