Edit: I snapped this after I found it. That’s how I knew it was on so tight. It still took me a good few minutes to find it because I kept looking under the car. I wasn’t expecting the filter to be on top.

    • NielsBohron
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      26 hours ago

      I’m no mechanic either, but it looks like you can tighten the chain around a stuck cap and then use the red handle as a lever to apply a large amount of force, “unsticking” the stuck cap

      • @[email protected]
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        25 hours ago

        Thanks!
        Yeah, I still can’t really visualise how this is working
        I get that you use the chain and the handle as a lever, but I just can’t wrap my mind around how this can work, without the chain just slipping around the stuff I want to unscrew.
        How do I get the chain like stiff, when I get it in place?

        Really sorry if I’m kinda slow here …

        • NielsBohron
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          34 hours ago

          No worries! I don’t think the chain needs to be stiff, just tight. From what I can tell, these are called a chain wrench, and I found a demo video.

          Hope that helps!

          • @[email protected]
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            24 hours ago

            Ah, ok, thank you very much

            I somehow imagined the chain hanging sloppy down and around the filter, and somehow the lever above still brings some force down there

            That mechanism now is very obvious.
            Thanks!