Mine is loose as well. I siphoned most of the washer fluid from it anyway so there wouldn't be as much mass in there sloshing the jug around--- and of course to save weight. (lol)
I was unaware there was a bottom holder; all I see is a screw that connects the jug to the side.
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///M Coupe: RPI Scoop, OE Strut, CDV, Volk RE30, SS Brake Lines, Stromung Exhaust
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