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Thread: Gotta Question ya'll...

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    Basic Member sowega's Avatar

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    Gotta Question ya'll...

    Gotta a 2018 stock 6.7 mated with a 68rfe and was wondering what's a good speed and gear to tow a 15500 lb (max loaded wt) 5th wheel would be? Any advice is appreciated! Thanks!!!


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  3. Top Of Page | #2
    Basic Member Bobtipton's Avatar

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    Re: Gotta Question ya'll...

    Quote Originally Posted by sowega View Post
    Gotta a 2018 stock 6.7 mated with a 68rfe and was wondering what's a good speed and gear to tow a 15500 lb (max loaded wt) 5th wheel would be? Any advice is appreciated! Thanks!!!
    No experience with a 2018, but our 2010 pulls our 15k fiver just fine. 6.7, 68RFE, and 3.73 rear. We’ve been full-time RVers for 5 years now.


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    Basic Member Bobtipton's Avatar

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    Re: Gotta Question ya'll...

    Forgot to mention - I usually tow in fifth gear, keeping rpms up around 1900-2000 at 65 mph. Only time I use sixth if on the flats if there’s no wind.


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  7. Top Of Page | #4
    Power247's Avatar

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    Re: Gotta Question ya'll...

    X2 for everything @Bobtipton said. Focus on keeping the engine rpms in the sweet spot, only use 6th when it's good and flat. I'm at about 10k and try to stay between 65-70mph on the highways. I see no point in getting in a rush, if I'm pulling the camper that means I'm on vacation

    Greg
    2012 | RAM 2500 | CCSB | MM3 tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310

    Greg
    2012 CCSB Big Horn 4x4 68RFE 3.73|FLO~PRO|SIMS|Edge Insight CTS|XRT Pro w/MCC by Double R Diesel|Infinity|JBL

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    Basic Member sowega's Avatar

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    Re: Gotta Question ya'll...

    Thanks for the response! I'm new to the RAM and was curious about where folks with experience and tow RV's find the RAM runs comfortable. Will take your advice and that of "Power247".


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  11. Top Of Page | #6
    Basic Member sowega's Avatar

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    Re: Gotta Question ya'll...

    Just recently finished our first trip with our 40 foot 5th wheel RV behind the 2018 3500 equipted with the 68rfe transmission and 373 rear end. Trip was just short of 600 miles round trip. Kept a close eye on the engine and transmission internal temps that were displayed on the dash. Ambient temps on the days we were actually pulling the unit on the road were in mid seventies. Engine coolant temps based on 60 mph cruising speed ranged from a low of 192 degrees to a high of 201 degrees based on up and down hill pulling as well as acceleration. Most of the time the engine coolant temps were around 194 degrees on the flats at 60 mph. Transmission temps went to what for this truck seems to the norm of 167 degrees and never went higher. Oil temp was 203 degrees and never went higher. Oil pressure stayed at 51/52 psi. According to the tachometer cruising in 5th gear (used 5th gear per the recommendations above) the engine was turning around 2000 rpm. Fuel mileage averaged 9.87 mpg. Question for the members is, would these numbers be considered somewhat normal? Thanks for taking the time for reading this post....


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  13. Top Of Page | #7
    watersupply189's Avatar

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    Re: Gotta Question ya'll...

    Quote Originally Posted by sowega View Post
    Just recently finished our first trip with our 40 foot 5th wheel RV behind the 2018 3500 equipted with the 68rfe transmission and 373 rear end. Trip was just short of 600 miles round trip. Kept a close eye on the engine and transmission internal temps that were displayed on the dash. Ambient temps on the days we were actually pulling the unit on the road were in mid seventies. Engine coolant temps based on 60 mph cruising speed ranged from a low of 192 degrees to a high of 201 degrees based on up and down hill pulling as well as acceleration. Most of the time the engine coolant temps were around 194 degrees on the flats at 60 mph. Transmission temps went to what for this truck seems to the norm of 167 degrees and never went higher. Oil temp was 203 degrees and never went higher. Oil pressure stayed at 51/52 psi. According to the tachometer cruising in 5th gear (used 5th gear per the recommendations above) the engine was turning around 2000 rpm. Fuel mileage averaged 9.87 mpg. Question for the members is, would these numbers be considered somewhat normal? Thanks for taking the time for reading this post....
    Yes sir looks normal to me!


    2016 Ram Laramie 3500, G56, 6.7, MM3 by Double R Diesel, Rough Country Leveling, 35x12.50 Nitto G2, HID headlights and fogs plus many many other add ons.....

    2016 Ram 3500 4x4 Laramie Crew Cab
    Cummins, G56, Rough Country Leveling, 35W HID fog lights,35W HID headlights, Lund Attitude Step Bars Sprayed Line-X, Window Vent Visors from EGR, LED Cargo, tag and backup lights, Windows Tinted, DRL's Activated, 35x12.50 18 Nitto Terra Grappler G2, Fuel Vapor Wheels Matte Black w/ Dark Tint, A.R.E. topper, MM3 Tuned by Double R Diesel
    2015 Jeep Grand Cherokee Limited 4x4
    Past- 2014 Ram 1500 4x4 Lone-Star Eco Diesel

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  15. Top Of Page | #8
    TexNeck's Avatar

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    Re: Gotta Question ya'll...

    Looks good to me as far as temps. Not sure about fuel but that thing would have some drag so seems right!

    2013 Ram 2500 Quad Cab Long Bed 4x4 White -Fender Flares-Leveled-35x12.50x20 ToyoAT2 - MM3 Tuning - DRD - 4” Flo Pro w 30” FTE Resonator, 6x18 Pypes tip, Replacement Bumper, Amp Power Steps, 32'' Light Bar, AMP rear Step, Train Horns
    John 3:16 - Philippians 4:13
    OFFROAD USE ONLY

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  17. Top Of Page | #9
    RamHunter18's Avatar

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    Re: Gotta Question ya'll...

    Sounds like your doing every good. Tow mode exhaust brake and let the truck do the work. If your in 6th and notice it down shifting to 5th frequently then lock out 6th but other wise if your stock I dont think you have anything to worry about. 6th should be fine especially with 3.73s


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  19. Top Of Page | #10
    Basic Member Aj Grubb's Avatar

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    Re: Gotta Question ya'll...

    5th gear and 65mph is what I would do if it were me with that kind of load.


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