Thanks guys, I have found and read about it. And now Im even more frustrated. I alway take only 1/2, thinking that I will make the car lighter. I also did this with my 350z ( no problems with it for 3 years ).
And now I have to always take full. And even top up, whenever theres a chance. How many people were involved into building this fuel tank at Nissan, few hundred? And they made it like this...how sad
Thanks for your help, anyway...