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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning Need to empty fuel tank

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      01-07-2020, 08:30 PM   #1
Johncaponegotti
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Need to empty fuel tank

Does anyone know of any way of me being able to empty my fuel tank? I have a whole tank of 93 that I need to empty to fill with e85 again.
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      01-11-2020, 04:48 PM   #2
pmcmtnbkr
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sure a fluid transfer pump need to make sure it can be used with gas there are several on the market you will also need several 5 gallon fuel cans. its probable just cheaper to drive the car and fill back up with E85
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      01-14-2020, 07:36 AM   #3
Liandri
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↑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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