↑its a wicked hassle to drain modern tanks, much easier to drive it down. There's a check ball (rollover) that makes it difficult to get a hose down the filler. I had to drain gas out of an f80 M3 last year and ended up pulling a fuel line and running the pump in 5 second bursts with a scan tool until I got most of it out. Took forever. The dme won't let you continuously command the pump on. You might be able to use a power probe to supply it with 12v at the sender but...easier to just drive it
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