1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Typical transmission temps?

Discussion in '2.5 Gen Tundras (2014-2021)' started by trails-end, Aug 2, 2021.

  1. Jan 16, 2022 at 7:51 AM
    #181
    Oey12

    Oey12 New Member

    Joined:
    Apr 15, 2020
    Member:
    #45061
    Messages:
    1,492
    Gender:
    Male
    First Name:
    Joey
    New York
    Vehicle:
    2020 SR5 TRD OFFROAD
    Coach Builder 1 inch lift strut spacers Coach Builder 1 inch shackles TRD Sway Bar Diode Dynamics SS
    In all honesty the manual and Toyota (when I reached out to corporate) are very vague AT best in regards to S4…
     
    Cpl_Punishment likes this.
  2. Jan 16, 2022 at 7:56 AM
    #182
    sask3m

    sask3m New Member

    Joined:
    Aug 9, 2018
    Member:
    #17939
    Messages:
    620
    Gender:
    Male
    Alberta
    Vehicle:
    Black 2019 SR5
    Trailer tires for the most part are rated at 65 mph, people that tow at 80 are only asking for trouble.
     
  3. Jan 16, 2022 at 8:36 AM
    #183
    Clemsonman14

    Clemsonman14 New Member

    Joined:
    Aug 9, 2020
    Member:
    #50545
    Messages:
    302
    Vehicle:
    2020 SR5 Crewmax 4x2
    I think Toyota even mentions not towing over 60 or 65 in the manual
     
    Cpl_Punishment and Oey12 like this.
  4. Jan 16, 2022 at 10:37 AM
    #184
    Captain papa

    Captain papa New Member

    Joined:
    Sep 28, 2021
    Member:
    #68644
    Messages:
    17
    Per above, a lot of trailer tires are rated 65 mpg max. Anybody, regardless of tow vehicle are irresponsible towing a 8000 lb. trailer at 85 mph. Stopping and emergency maneuvers are the issue. Regarding the I-10 comment about getting ticketed for embedding traffic at 65mph; I am assuming that Mad Max is being dramatic for emphasis. I have traveled I10 many times towing at 65mph including yesterday morning returning from Carrabelle beach and never been pulled over. Must have passed three state patrol. Every tow vehicle I have ever had recommended locking out overdrive for towing heavy loads. And per my earlier description what is the point in running in overdrive if you get no improvement in gas mileage and only heat up the transmission.
     
  5. Jan 16, 2022 at 2:24 PM
    #185
    BCTRD

    BCTRD New Member

    Joined:
    Aug 1, 2021
    Member:
    #66220
    Messages:
    205
    Gender:
    Male
    B.C.
    Vehicle:
    2021 MGM Tundra TRD Sport
    18"BBS Forged wheels, factory running boards, VLED's, Rigid Pro Led mod (D2 SAE), diff breather mod, Husky mats, DIY Cquartz UK 3.0, Husky liners, OCD organizers,
    What app you running? I'd need a large tablet to have that many gauges and still retain a decent size for viewing.
    Running OBD link and torque.
    Being able share gauge setup would be a bonus as it can be time consuming to setup these screens.
     
  6. Jan 16, 2022 at 2:41 PM
    #186
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

    Joined:
    Aug 6, 2021
    Member:
    #66426
    Messages:
    2,439
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 Barcelona Red SR5 Crewmax
    Custom bug spat pattern hood, grill & bumper. Dead Live Oak leaf collection under hood, cowl and lower fenders. Beach sand custom floor covering.
    They are. In my experience towing ~6,000 lbs in Drive w/tow-haul is a dumpster fire. Right under the transmission pan.
     
    hagrid, JDR76 and Oey12[QUOTED] like this.
  7. Jan 16, 2022 at 2:58 PM
    #187
    Melikeymy beer

    Melikeymy beer No cooler for you!

    Joined:
    Jul 16, 2019
    Member:
    #33297
    Messages:
    1,852
    Gender:
    Male
    Muscogee Nation
    Vehicle:
    2019 Platypus Tundra
    This. Towing my TT in D is annoying. It shifts to S6 and feels like a slug. S5 is the sweet spot for me in mostly level terrain.
     
    JDR76 likes this.
  8. Jan 16, 2022 at 3:01 PM
    #188
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

    Joined:
    Aug 6, 2021
    Member:
    #66426
    Messages:
    2,439
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 Barcelona Red SR5 Crewmax
    Custom bug spat pattern hood, grill & bumper. Dead Live Oak leaf collection under hood, cowl and lower fenders. Beach sand custom floor covering.
    Same here and watch for the TC to unlock. Then S4 until the crest of the hill. When towing, cruise control get shoved in with the rest of the nannies. I like to zoom climb with mine letting the obese beast unleash its advantage.
     
    hagrid and Oey12 like this.
  9. Jan 17, 2022 at 1:49 PM
    #189
    TundraTed

    TundraTed New Member

    Joined:
    Nov 8, 2020
    Member:
    #54615
    Messages:
    184
    Gender:
    Male
    Vehicle:
    2020 SR5 TRD Sport Crewmax 4x4
    In order: Orvis dog cover for rear bench seat, OE gun safe, Husky liners front/rear, Tyger tonneau tri fold, Rough Country seat covers
    The app is ODB Fusion running on my iPhone XS.

    Agreed, it would be nice to be able to share dashboards... this one probably took 25min to make. This was just one of many Dashboards I was testing. A cluster F like this is nice to screenshot throughout the ride to review later.

    If your get ODB Fusion, go to the Dashboards section, click:

    > Menu, Add Dashboard
    > Menu, Add Display
    > Add Radial or Digital Gauges
    > Select options

    Then, once the new Display is on the Dashboard, hold press the Display,

    > Edit Display appears
    > Play around with menus until you get the hang of it

    IMO worth the $10. Good luck!
     
    BCTRD[QUOTED] and clarkritchie like this.
  10. Jan 17, 2022 at 3:57 PM
    #190
    hagrid

    hagrid The most diverse of Diversity Hires!

    Joined:
    Dec 5, 2018
    Member:
    #22645
    Messages:
    1,975
    Gender:
    Male
    First Name:
    Spraynard
    Pittsburgh
    Vehicle:
    K1600GTL ZX-14R
    paynuss stretchers
    An O-beasts!!
     
    AZBoatHauler likes this.
  11. Feb 1, 2022 at 11:32 AM
    #191
    BCTRD

    BCTRD New Member

    Joined:
    Aug 1, 2021
    Member:
    #66220
    Messages:
    205
    Gender:
    Male
    B.C.
    Vehicle:
    2021 MGM Tundra TRD Sport
    18"BBS Forged wheels, factory running boards, VLED's, Rigid Pro Led mod (D2 SAE), diff breather mod, Husky mats, DIY Cquartz UK 3.0, Husky liners, OCD organizers,
    Thanks for the explanation:thumbsup:
     
    TundraTed[QUOTED] likes this.
  12. Feb 1, 2022 at 2:38 PM
    #192
    ejes

    ejes New Member

    Joined:
    Nov 1, 2020
    Member:
    #54335
    Messages:
    85
    Gender:
    Male
    Vehicle:
    2020 1794 Tundra / 2023 4Runner TRD PRO
    Untrue. Posted minimum speeds on most interstates is 40-45 mph, and only a handful of states are 45-60.
     
    EmergencyMaximum likes this.
  13. Feb 1, 2022 at 5:26 PM
    #193
    Mad Max

    Mad Max New Member

    Joined:
    Oct 6, 2020
    Member:
    #53237
    Messages:
    682
    Gender:
    Male
    First Name:
    Max
    Vehicle:
    2021 Tundra Limited
    Ok, tow at 50 mph in TX, LA, Mississippi, AL, FLA and make sure you are wearing bullet proof vest....
     
    blanchard7684 likes this.
  14. Feb 1, 2022 at 7:40 PM
    #194
    ejes

    ejes New Member

    Joined:
    Nov 1, 2020
    Member:
    #54335
    Messages:
    85
    Gender:
    Male
    Vehicle:
    2020 1794 Tundra / 2023 4Runner TRD PRO
    Okay, I'd do it all day long and not sweat a bead.

    Are you actually saying you'll be shot for driving 50 mph on an interstate?? That's an asinine statement. Thanks for verifying my point on the veracity of my previous post...
     
  15. Jul 22, 2022 at 11:55 AM
    #195
    Coolhand1958

    Coolhand1958 New Member

    Joined:
    Jun 14, 2022
    Member:
    #79542
    Messages:
    7
    Gender:
    Male
    First Name:
    Luke
    Vehicle:
    2021 Tundra Platinum
    TRD Rear Sway Bar, Yokohama G015 AT tires
    All, adding towing experience. 7000 lb travel trailer 29 ft. Ambient 94 Rolling from VA to VT, highest pan temp on my scan gauge was 239, but only after a long pull, keeping in S4 the temp was 220 to 224, Stop and go in Troy NY with Ambient temp 100 was 233. I lock out S6 manually and agree with a previous poster that S5 is sweet spot on level, but I shift to S4 so the RPMs stay up and the trans is not "hunting a gear". NY and VT have the mountains, so the Tundra was in S3 for a number of the hills on RT11 in VT going E from RT 7N. Temp 230 or so.

    Net Net, not worried about a trans cooler install given experience and temps I see. Plan to change fluid at 60K mile as per owners manual.
     
    Cpl_Punishment and Oey12 like this.
  16. Jul 22, 2022 at 1:31 PM
    #196
    Asimov2025

    Asimov2025 Not Sure

    Joined:
    Feb 19, 2020
    Member:
    #42850
    Messages:
    1,009
    Gender:
    Male
    North Texas
    Non-stop mods
    An automatic transmission that automatically shifts gears while towing. What will they think of next?
     
    AZBoatHauler and ColoradoTJ like this.
  17. Jul 22, 2022 at 1:34 PM
    #197
    JDR76

    JDR76 New Member

    Joined:
    Jun 22, 2021
    Member:
    #64642
    Messages:
    510
    Gender:
    Male
    WA
    Vehicle:
    2021 1794 TRD OFF ROAD
    Tomorrow is my planned cooler installation day. Depending on how it goes, I may hitch up the trailer on Sunday and take it out for a drive just to see the difference. I'm kind of getting excited!
     
    ColoradoTJ likes this.
  18. Jul 22, 2022 at 1:42 PM
    #198
    ColoradoTJ

    ColoradoTJ Certified tow LEO Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    35,621
    Gender:
    Male
    Colorado
    Vehicle:
    LML 3500HD
    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch
    I wish that you could have seen how hard I laughed at this comment. Well played sir. :thumbsup:
     
    Saltyhero13, AZBoatHauler and JDR76 like this.
  19. Jul 22, 2022 at 1:51 PM
    #199
    ColoradoTJ

    ColoradoTJ Certified tow LEO Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    35,621
    Gender:
    Male
    Colorado
    Vehicle:
    LML 3500HD
    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch
    ST tire speed ratings should be verified. All of the speed ratings on my trailer tires are 75-81 mph (M or L) at max capacity. Can’t say I have ever owned a ST tire limited at 65 mph.

    I agree with you on towing at 80 mph regardless of tow rig setup.
     
  20. Jul 23, 2022 at 7:00 PM
    #200
    JDR76

    JDR76 New Member

    Joined:
    Jun 22, 2021
    Member:
    #64642
    Messages:
    510
    Gender:
    Male
    WA
    Vehicle:
    2021 1794 TRD OFF ROAD
    Cooler installed today (PITA). Hoping to hitch up tomorrow and check some temps.
     
    ColoradoTJ likes this.
  21. Jul 23, 2022 at 11:33 PM
    #201
    Joe333x

    Joe333x Member

    Joined:
    Apr 4, 2019
    Member:
    #28632
    Messages:
    1,631
    Boston
    Vehicle:
    2019 Tundra CrewMax Platinum
    What made it a PITA? Im doing mine this week also.
     
    ColoradoTJ likes this.
  22. Jul 24, 2022 at 5:14 AM
    #202
    Cpl_Punishment

    Cpl_Punishment Young men never die.

    Joined:
    Jan 24, 2019
    Member:
    #25048
    Messages:
    14,218
    Gender:
    Male
    First Name:
    Rosy
    Alberta, Canada
    Vehicle:
    2020 MGM SR5 CM 4X4
    Boost Auto mirrors, RSB, Leer Legend canopy, Line-X bed liner
    I tried S5 when towing my trailer last week but I couldn't get the torque converter to stay locked. When I would come to a small uphill, it would lock the converter then immediately drop to 4th, instead of letting it try to hold in 5th with the converter locked. I also couldn't accelerate ahead of hills in 5th or, if I did, it would still shift down to 4th on the hill and I'd top the hill going faster than I was at the bottom, which is always great for fuel economy. All in all, I decided I prefer S4 despite running at 3000 RPM because the truck behaves more like I'd expect it to, rather than downshifting randomly.
     
    Retired...finally and Oey12 like this.
  23. Jul 24, 2022 at 5:40 AM
    #203
    JDR76

    JDR76 New Member

    Joined:
    Jun 22, 2021
    Member:
    #64642
    Messages:
    510
    Gender:
    Male
    WA
    Vehicle:
    2021 1794 TRD OFF ROAD
    Just the TRD skid plate removal and installation, really. Would have been easier if I had a second person to help. The actual install of the cooler and its components was not bad, though my claustrophobia hit a few times while I was under the truck.

    The things I was most concerned about, looked installing the thermostat and the hard lines, was far easier than I had expected. Good luck!
     
    Joe333x[QUOTED] likes this.
  24. Jul 24, 2022 at 5:50 AM
    #204
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

    Joined:
    Aug 6, 2021
    Member:
    #66426
    Messages:
    2,439
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 Barcelona Red SR5 Crewmax
    Custom bug spat pattern hood, grill & bumper. Dead Live Oak leaf collection under hood, cowl and lower fenders. Beach sand custom floor covering.
    You're finding what I experienced while towing. Upshifts to S5 were useful and even a few to 6 on long downhills but as you noted, S4 seems to work best. I really can't say my MPG is any worse just staying in fourth.
    Those monitoring trans temps can see a rapid temperature rise on the sensor closest to the TC as soon as the TC unlocks. Yesterday on the way back from PA I saw 212*F on both pan and TC after a few miles of 78 MPH on a hilly section of I77 north of Cambridge OH. We were light but there was a headwind and 67*F after a front passed. Yikes! A cooler may be reasonable option even without pulling a trailer.
     
  25. Jul 24, 2022 at 12:08 PM
    #205
    Mad Max

    Mad Max New Member

    Joined:
    Oct 6, 2020
    Member:
    #53237
    Messages:
    682
    Gender:
    Male
    First Name:
    Max
    Vehicle:
    2021 Tundra Limited
    Speed limit on many interstates in the south is 75 mph. Stupid fks with their underpowered trucks towing at 60 mph is a disaster waiting to happen as tractor trailers work to get around the idiots which backs up the left lane until a gauntlet is formed around dip shit doing 60 mph. You will eventually get slammed into from behind towing towing 10 mph under stated speeds as most go 10 mph over stated speeds. Coming back from Dallas on 45 south Friday where the speed limit is 75 mph, I saw a guy launch a bottle at an idiot towing at 65 mph. Poor broke fk needs to get the proper tow vehicle or not tow.....




     
    blanchard7684 likes this.
  26. Jul 24, 2022 at 12:35 PM
    #206
    Joe333x

    Joe333x Member

    Joined:
    Apr 4, 2019
    Member:
    #28632
    Messages:
    1,631
    Boston
    Vehicle:
    2019 Tundra CrewMax Platinum
    Thats ridiculous. No one is slamming into you for driving 60mph, thats why there is a passing lane. If you get slammed into its that person's fault and they obviously are not paying attention. Many company vehicles are set to not go over 65 or the GPS will alert the company if it does. Driving 55-65mph will give you the best MPG in any vehicle so even owner operators will drive slower to save money especially with the high cost of diesel. If you want to drive fast thats fine, do it in the fast lane. I have absolutely no problem with someone driving slow as long as they are in the right lane. Here in mass the limit is 65 and minimum is 45. You'll rarely see me going over 65 and I stay to the right and allow people to pass, if I want to pass I move over and pass on the left like you are supposed to. The speed limit is just that, the limit, not how fast you have to drive, now if there is a posted minimum, then yes you need to stay above that.
     
  27. Jul 24, 2022 at 12:48 PM
    #207
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

    Joined:
    Aug 6, 2021
    Member:
    #66426
    Messages:
    2,439
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 Barcelona Red SR5 Crewmax
    Custom bug spat pattern hood, grill & bumper. Dead Live Oak leaf collection under hood, cowl and lower fenders. Beach sand custom floor covering.
    I tend to think it was the idiot that launched the bottle not the guy towing at 65. Afterall that's the recommended towing speed for a Tundra.....Which is built in Texas by Texans.
     
  28. Jul 24, 2022 at 1:19 PM
    #208
    EmergencyMaximum

    EmergencyMaximum New Member

    Joined:
    May 28, 2022
    Member:
    #78904
    Messages:
    1,250
    Living in florida and traveling up north through multiple states often, I've never seen 75mph limit. It is always 65 or 70 outside metro and drops to 55 or 60 inside metro.

    You need to cool your head. Nobody is getting shot or killed. If you are a hot rod and get triggered by slower traffic, perhaps it's time to take anger management seriously.
     
  29. Jul 24, 2022 at 3:12 PM
    #209
    JDR76

    JDR76 New Member

    Joined:
    Jun 22, 2021
    Member:
    #64642
    Messages:
    510
    Gender:
    Male
    WA
    Vehicle:
    2021 1794 TRD OFF ROAD
    My trailer and my truck both list a max towing speed of 65 mph. I sometimes push it to 70, but I hang out in the right lane. If I'm going 65 and someone drives in to me going 75 or 85, they are to blame, not me. If someone chucks a bottle at me, I will call the police and report their license plate. They are the "fk" and not me.
     
  30. Jul 24, 2022 at 3:17 PM
    #210
    JDR76

    JDR76 New Member

    Joined:
    Jun 22, 2021
    Member:
    #64642
    Messages:
    510
    Gender:
    Male
    WA
    Vehicle:
    2021 1794 TRD OFF ROAD
    On a side note, this "fk" took the trailer out today to try out the new cooler. Very impressed! I used to tow in S4 and S5 and work to keep temps less than 225. Today I drove in D and Tow Haul and maxed out at 201 degrees. If I had done that in D before, I would have easily been hitting 235. On average, I saw a reduction today of about 30 degrees!
     
    Last edited: Jul 24, 2022

Products Discussed in

To Top