Driving in 4WD-High

Driving in 4WD-High

This is a discussion on Driving in 4WD-High within the RAM 1500 Diesel General Discussion forums, part of the RAM 1500 EcoDiesel Forum category; Let me bounce something off of you with more experience…..other than the obvious safety factors (decreased traction, slick roads and increased stopping distance), HOW FAST ...

Page 1 of 4 123 ... LastLast
Results 1 to 10 of 32
Like Tree19Likes

Thread: Driving in 4WD-High

  1. #1
    RAM Rookie TerryR's Avatar
    Join Date
    Sep 2015
    Posts
    27
    Member #
    6703
    Liked
    5 times

    Driving in 4WD-High

    Let me bounce something off of you with more experience…..other than the obvious safety factors (decreased traction, slick roads and increased stopping distance), HOW FAST do you go in 4WD-high? Living in the snowy country, I've spent a considerable amount of time, particularly this winter, in 4WD. I grew up in Texas, so--when the roads are snow-covered-- driving in traffic in Wisconsin and Minnesota can be frightening ('cause most of these people are nuts, on the road). Our Ecodiesel "lops along" at a low RPM in 4WD High (turns about 1200 RPM at "45 'ish"). On "good" roads (light snow pack/no traffic) is it safe for the truck/tranny to run at a little higher MPH??

    Thanks for the input/just turned 37,000 miles on the odo, and our Ecodiesel is still such a pleasure to drive.

    Terry R/New Richmond, WI

  2. #2
    Super Moderator Crash68's Avatar
    Join Date
    Sep 2015
    Location
    MI
    Posts
    1,917
    Member #
    6698
    Vehicle
    2015 EcoD Outdoorsman CC 6.5' 4X4 3.92
    Liked
    970 times
    If your concerned about the low rpms, use the Gear +/- buttons to keep the trans in a lower gear.
    As far as how fast is too fast for 4X4, that depends on the road conditions, if your going to fast for the conditions, odds are 4X4 is not going to save you.

  3. #3
    RAM Veteran Layhne's Avatar
    Join Date
    Jun 2016
    Location
    Toronto, ON
    Posts
    476
    Member #
    9271
    Vehicle
    2016 Ram Crew Cab SLT EcoDiesel
    Liked
    139 times
    I run 4WD-High at any speed. You can't shift into 4WD-High at any speed greater than 80km/h but that's just a limit for shifting. You can drive at any speed on it as far as I know.

    4WD-Low is a completely different beast.
    2016 Dodge Ram 1500 SLT 3.0L EcoDiesel
    Crew Cab, 4X4, 5.7' Bed, 3.55 Gears, 17" Wheels, Stock Tires, Spray in Liner and Debadged

    Anyone want to donate to the toy improvement fund?


  4. Remove Advertisements
    Ram1500Diesel.com
    Advertisements
     

  5. #4
    RAM Sr Member 04rcode's Avatar
    Join Date
    Jan 2015
    Location
    SE Michigan
    Posts
    166
    Member #
    4315
    Vehicle
    2014 Ram 1500 Eco Diesel
    Liked
    75 times
    I make weekly trips to Northern Michigan. Never no what road conditions will be. I run in 4 HIGH 90% of the time. My speeds vary to roads and conditions but I have run 80mph at times. No worries almost 56000 miles and counting.

    Sent from my SM-G935P using Tapatalk
    Diesel Dave likes this.
    14 Outdoorsman Air Ride Trailer Tow Black Red Dirt Road Thunder wheels 275/65/r20 Toyo Open Country AT2 tires (summer) 17" RockStars and Cooper tires (winter) Bak Industries FiberMax tonneau cover Mopar mud flaps Steelcraft 4" step bars Black Mopar Emblems all around AUTO LED lows and fogs plate reverse cargo Adjustable lift links Green Diesel Hot Tune Edge CTS2

  6. #5
    RAM Rookie TerryR's Avatar
    Join Date
    Sep 2015
    Posts
    27
    Member #
    6703
    Liked
    5 times
    Thanks for the feedback, all. Yep, I'm aware of the low speeds required for low-lock….just wasn't sure about running higher highway speeds in 4-wheel-drive.

    Thanks, again.

    Terry

  7. #6
    RAM Sr Member smoky's Avatar
    Join Date
    Jul 2014
    Location
    MN
    Posts
    185
    Member #
    1755
    Vehicle
    2015 Long Horn
    Liked
    68 times
    Quote Originally Posted by TerryR View Post
    Let me bounce something off of you with more experience…..other than the obvious safety factors (decreased traction, slick roads and increased stopping distance), HOW FAST do you go in 4WD-high? Living in the snowy country, I've spent a considerable amount of time, particularly this winter, in 4WD. I grew up in Texas, so--when the roads are snow-covered-- driving in traffic in Wisconsin and Minnesota can be frightening ('cause most of these people are nuts, on the road). Our Ecodiesel "lops along" at a low RPM in 4WD High (turns about 1200 RPM at "45 'ish"). On "good" roads (light snow pack/no traffic) is it safe for the truck/tranny to run at a little higher MPH??

    Thanks for the input/just turned 37,000 miles on the odo, and our Ecodiesel is still such a pleasure to drive.

    Terry R/New Richmond, WI
    Ran 80 and change all the way across North Dakota, no problems. All around dam good truck.

  8. #7
    RAM Ninja RB33's Avatar
    Join Date
    Sep 2014
    Location
    Cove Or,SUMMER TIME-ELK WA,WA-WINTER TIME.
    Posts
    2,246
    Member #
    2654
    Vehicle
    2017 BIGHORN CREW/CAB 4X4
    Liked
    1328 times
    Just my opinion but any speed over 60 when you need 4 high is to fast for road conditions. 4 high at high speeds is not going to keep you out of trouble forever.
    choochooman74, Davemd and Mcsap like this.
    Prior Rams. 91 2door 95 2500 Extended Cab 03 3500 Grew Cab long bed & all 4 X 4’s Current RAM 2017 BIG HORN

  9. #8
    RAM Veteran hillbilli's Avatar
    Join Date
    Jun 2014
    Location
    Frozen North Land (Not "that" far North)
    Posts
    438
    Member #
    1589
    Vehicle
    2015 Bighorn
    Liked
    132 times
    I only have it in 4 lock when there is something for the tires to slip on IE snow/ice and I should be driving at those speeds above if that is the case. My truck does have 4 auto, so I will run it in that at highway speed as conditions can change rapidly.

  10. #9
    RAM Ninja choochooman74's Avatar
    Join Date
    Oct 2013
    Location
    Tiverton, RI
    Posts
    1,818
    Member #
    60
    Vehicle
    15 Ram Big Horn | 06 Liberty CRD Sport
    Liked
    809 times
    I agree with a lot of the above. If you are driving at a good speed, either you're going too fast for road conditions, or road conditions don't warrant 4x4. I myself, having the 44-44 transfer case, keep it in 4 auto while it is snowing. If the road is covered, then I may switch to 4 locked if there appears to be the need for extra traction.
    Mcsap likes this.
    2015 Ram 1500 ED Big Horn (Purchased 8/15) CC 6.5' Bed, GDE Tuned Since Week 1, Pace Edwards Jackrabbit Tonneau, 1A Auto Tow Mirrors, Debadged, SLT Grill Inserts, XD 797 Spy 18x8.5 Wheel with Michelin Defender LTX M/S2 LT275/65R18 Tires, 20" Stock Wheels Plastidipped with 275/60R20 Blizzaks DM-V2
    2006 Jeep Liberty CRD, GDE Engine and Transmission Tuned
    2015 Rockwood Roo 183 Hybrid Travel Trailer

  11. #10
    RAM Professor Davemd's Avatar
    Join Date
    Dec 2014
    Location
    Fawcett, Alberta
    Posts
    862
    Member #
    3913
    Vehicle
    15 Laramie Eco ,98 2500 cummins, 05 vw tdi
    Liked
    292 times
    Quote Originally Posted by RB33 View Post
    Just my opinion but any speed over 60 when you need 4 high is to fast for road conditions. 4 high at high speeds is not going to keep you out of trouble forever.
    So ture we both know at some point they maybe in the rubarb !! But it's way nicer to not have to put it in gear after your stuck.

Page 1 of 4 123 ... LastLast

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Anyone try these on a 4wd?
    By banditnwc in forum RAM 1500 Diesel Suspension - Chassis
    Replies: 10
    Last Post: 11-08-2016, 09:47 AM
  2. Reverse gear too high - soultuion if you have 4wd
    By wbdavey in forum RAM 1500 Diesel Transmission
    Replies: 4
    Last Post: 08-17-2016, 04:12 PM
  3. Driving in blizzard and transmission and 4wd lights came on
    By Arnelliot in forum RAM 1500 Diesel Mechanical
    Replies: 14
    Last Post: 03-27-2016, 03:49 PM
  4. 4WD Auto
    By Mike-NC in forum RAM 1500 Diesel General Discussion
    Replies: 10
    Last Post: 05-12-2015, 01:21 AM
  5. Unable to switch in to 4wd
    By hour in forum RAM 1500 Diesel Mechanical
    Replies: 2
    Last Post: 01-04-2015, 10:19 PM