I use a suction device to change the oil in a 2017 quiet tech. I measured how much I sucked out of the dipstick tube, it was really close to a quart. Did I get every drop out no but enough to call it an oil change. Who's to say The Villages Golf Cart store doesn't use a suction device? I owned a boat for years with no access to the drain and suctioned the oil out was never a problem.
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