Thread: Gas question???
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      12-22-2012, 12:20 PM   #20
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Drives: 2009 BMW 335i Convertible E93
Join Date: Dec 2012
Location: United States

Posts: 31
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For navy ships (not so much aircraft), they never drop below 50%. (For aircraft we drain the tanks for safety reasons) Two is one, one is none. Half tank is our empty. It provides emergency reserves and prevents the deposits at the bottom of the tanks from entering the engines.
So I do the same exact procedure with my BMW.