Anecdotal or real time proof of the benefits of a real synthetic oil?

>bought car
>find that the engine bay is too hot
>valvetrain loud
>fans coming on at high speed
>previous owner used shell 10w30 full syn
>acceleration sluggish
>drain
>put amsoil 100% syn
>engine bay much cooler
>valvetrain very quiet
>fans coming on at lower speed
>acceleration very responsive

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  1. 3 weeks ago
    Anonymous

    >change my oil for the first time in who knows how long
    >car runs better
    >is this placebo?
    what the frick

    • 3 weeks ago
      Anonymous

      it was new oil when I bought it. He changed it the week before I bought it.

  2. 3 weeks ago
    Anonymous

    Most oil this or that is snake oil. Doubly so if you're engine isn't modified. Just look on the back of the jug and make sure it meets the spec your car calls for. Walmart supertech meets API SP ILFAC GF-6 and it's rather cheap so that's what I buy. Where you need to really be Discerning is your oil filter. Napa Gold and Wix are one and the same and are the best choice outside of any straight up race applications. OEM tends to be your best bang for the buck. Orange Fram means you just want your shit to break or you are a broke b***h.

    • 3 weeks ago
      Anonymous

      I use oem oil filter.

  3. 3 weeks ago
    Anonymous

    >change oil
    >think you made a difference

    • 3 weeks ago
      Anonymous

      bro the absolute state of wrenchlets homosexuals, it's unreal how stupid and sheltered they are

      https://i.imgur.com/3GDiTAk.jpg

      >bought car
      >find that the engine bay is too hot
      >valvetrain loud
      >fans coming on at high speed
      >previous owner used shell 10w30 full syn
      >acceleration sluggish
      >drain
      >put amsoil 100% syn
      >engine bay much cooler
      >valvetrain very quiet
      >fans coming on at lower speed
      >acceleration very responsive

      kys wrenchlet homosexual

  4. 3 weeks ago
    Anonymous

    Its true. Theres pumping losses from the impurities in mineral.

  5. 3 weeks ago
    Anonymous

    >use full synthetic
    >oil leak slows to a crawl
    Probably just a coincidence but whatever it works for me

    • 3 weeks ago
      Anonymous

      opposite happened to me. bought an old 80s car that had used dino oil its whole life, had zero leaks, a couple months later i swap the oil for synthetic and within a few days it starts slowly dripping out of a couple spots. might be a coincidence but the internet promised me that "synthetic finds leaks" was a boomer myth.

      • 3 weeks ago
        Anonymous

        Maybe some sludge was sealing the cracks or something

      • 3 weeks ago
        Anonymous

        you are not supposed to go synthetic on those cars anon...

      • 3 weeks ago
        Anonymous

        >internet promised me that "synthetic finds leaks" was a boomer myth
        the myth is synthetics CAUSING leaks. they absolutely do reveal/find leaks because the molecule size is smaller and more uniform compared to mineral oil, combined with whatever detergents are in synthetics you're bound to discover a leak or two that was previously plugged up by the old mineral oil

      • 3 weeks ago
        Anonymous

        You just reactivated the self applying rust prevention. Good job anon.

  6. 3 weeks ago
    Anonymous

    You have a Rotella vs Amsoil thing going on.
    Mail order motor oils have better additives that aren't typically available from retail oils. That's why I use mail order and I notice a difference, bigly. Especially aluminum blocks with force injection.

    I only use Redline.

    • 3 weeks ago
      Anonymous

      >and I notice a difference, bigly.
      Pop quiz: Describe the difference in a way that a normal person can understand.
      Oh, you can't do that? Then why make the comment?

      • 3 weeks ago
        Anonymous

        I feel the rumbling far less when the engine is cold and when revving high. The rumbling is far far less when I use Redline in my turbos.

        • 3 weeks ago
          Anonymous

          >I feel the rumbling
          Your engine is not supposed to "rumble". Replace your spark plugs and quit being a fricking moron.

  7. 3 weeks ago
    Anonymous

    Maybe he lied and put in shitty oils. Or he went 40k miles without changing it then changed it and a bunch of sludge clogged the filter or whatever

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