Car fuel tank what grade aluminium?

[whensparksfly]

Im building a Car fuel tank and can get a straight answer about what grade aluminium?

 

[pressbrake1]

Ns3

 

[The_Yellow_Ardvark]

https://www.mig-welding.co.uk/forum/threads/alloy-fuel-tank-question.39341/

This may be of help.

 

[pedrobedro]

Can get?