I’ve lost count of the amount of factory tanks I’ve rewelded
They all do that sir.....
The factory tanks have an autogenous weld, meaning no weld filler material was introduced to the weld
This also means that the weld is not particularly strong and may not have adequate penetration
For road cars the best alternative is a stainless steel fuel tank from me or one of the other suppliers
Simon @ SiFab.co.uk