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Oil viscosity

Discussion in '5th Gen 4Runners (2010-2024)' started by Sailormilan2, Jun 28, 2022.

  1. Jul 9, 2024 at 6:18 PM
    #151
    4runningMan

    4runningMan New Member

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    Do you notice any subtle difference in how the truck runs in summer with the 5-30?
     
  2. Jul 9, 2024 at 7:17 PM
    #152
    SlvrSlug

    SlvrSlug Slightly bent.

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    Yes, it is smoother, with less clacking, or valve chatter. I do not notice any difference in performance other than maybe very slightly less mpg’s.
     
    4runningMan[QUOTED] and jgalt like this.
  3. Jul 9, 2024 at 7:24 PM
    #153
    Airdam

    Airdam New Member

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    airdam
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    In the old days, like in the 80s when Formula 1 was not so strict on rules and race teams had different engine tunes for qualifying vs race day, they would also play with the oil in the engine since the qualifying engine was practically a throw-away run at the absolute limit to achieve the poll.
    Also, in Nascar, in the past they would run the engines as dry as possible before dry sump setups with the thinnest oil possible to make more power for qualifying. Thinner oil, and less of it, meant less parasitic drag on the crank. I vaguely remember an engine dyno chart i think Gibbs or somebody had leaked or they posted where there was like a 40+HP gain by running thinner oil, i think it was straight 0w
     
  4. Jul 10, 2024 at 6:07 AM
    #154
    Grug556

    Grug556 New Member

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    Kings, Crestone Rack, Baja S8, Baja Fogs, Baja XL80s, Baja mini cubes, SPOD, ARB compressor, RCI full skids, ROAM box and stuff. ST Pros. Shrockworks sliders... GOAT armour

    yes runs great, i use REdline 5w30. Occasionally I use Redline 10w30 like I put in last week.
     
    4runningMan[QUOTED] likes this.
  5. Jul 10, 2024 at 6:11 AM
    #155
    2021venture

    2021venture New Member

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    Todd
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    2021 Venture
    Elka 2.5, Apache Offroad UCA, durobumps, RCI full skids, RSG sliders, 10 lb Powertank, Maxtrax, Hi lift jack, Westscott Designs modular roof rack and ladder, ARB rear diff breather relocate, ECGS bushing upgrade, c4 low profile bumper, Baja designs S8 lightbar, warn evo winch, factor 55 ultrahook
    I try for the seasonal oil change 5w30 summer and 0w20 winter. With low miles it hasnt always worked out. Running the 5w30 in winter was fine. Granted this is Texas and not bitter cold like like many states have. I still try to change it out for the 0w cold flow benefits even if low miles on the 5w30.
     

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