Pumping Gas out of Tank

lonatic · 10-22-2021, 02:25 PM

I know similar questions have been asked but here is the situation. Im looking to go SC with two tunes (e85, 93). And be able to toggle between the two, however I am seeking a viable solution to get the gas out of the car (say I wanna pump out the 93 and put e85 in). I searched and didnt find a viable solution..

Secondly anyone running e85 autotune on SC yet (jealous of n54 community)?? searched for countless hours and found maybe 2 people.

roastbeef · 10-22-2021, 02:27 PM

There isn't a good solution for this.

kevin @ eas · 10-22-2021, 02:45 PM

There is normally a screen in the filler neck to prevent someone from siphoning gas out that way. With a diagnostic tool that can cycle the fuel pump you can disconnect a fuel line and cycle till empty.

Mog-10 · 10-22-2021, 04:42 PM

In theory couldn't you hook a pump to the Schrader valve (if these cars have one) on the fuel line in the engine bay and pump it out that way? It would be slow.

10-22-2021, 02:25 PM	#1
lonatic Private First Class 25 Rep 110 Posts Drives: E90 M3, E36 M3 Join Date: Feb 2010 Location: NVA iTrader: (0)	Pumping Gas out of Tank I know similar questions have been asked but here is the situation. Im looking to go SC with two tunes (e85, 93). And be able to toggle between the two, however I am seeking a viable solution to get the gas out of the car (say I wanna pump out the 93 and put e85 in). I searched and didnt find a viable solution.. Secondly anyone running e85 autotune on SC yet (jealous of n54 community)?? searched for countless hours and found maybe 2 people. __________________ Alpine E90 M3 Dakar E36 M3
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10-22-2021, 02:27 PM	#2
roastbeef Lieutenant General 11586 Rep 12,726 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	There isn't a good solution for this. __________________ Instagram; @roastbeefmike
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10-22-2021, 02:45 PM	#3
kevin @ eas BimmerPost Supporting Vendor 2919 Rep 21,727 Posts Drives: 2015 BMW M4 Join Date: Nov 2011 Location: Anaheim iTrader: (22)	There is normally a screen in the filler neck to prevent someone from siphoning gas out that way. With a diagnostic tool that can cycle the fuel pump you can disconnect a fuel line and cycle till empty. __________________ Kevin S. \| european auto source (eas) email: kevin@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x31 GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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10-22-2021, 04:42 PM	#4
Mog-10 Private First Class 145 Rep 107 Posts Drives: E93 m3 Join Date: Apr 2021 Location: Home iTrader: (0)	In theory couldn't you hook a pump to the Schrader valve (if these cars have one) on the fuel line in the engine bay and pump it out that way? It would be slow. Last edited by Mog-10; 10-22-2021 at 04:49 PM..
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