Hi guys. After a long brake from fsx im back. And i forgot a few important things. 1 of them is that when im flying and my center tank is emty only either the left or the right tank is draining fuel. Via the crossfeed. I can manage to drain the left or the right. To get about the same amount. But i can't remember this happening before. Does somebody know how get both tanks to drain together at the same time? 

 

For info. Im a hobby flyer. Im just having fun. Im not a real pilot and do not nearly know everything. So i'm sorry if this is a dumb question.

 

thanks in advance.

You should have respective pumps on and crosfeed off. Does it still drain one tank only? Then 1 engine should die.