Cap is all sorted now, had the boys sand it down a bit
so comes off easily and still has a firm seal as the
thread is only 2cm of the cap.
The STD tank in the bay usually lasted me 2-3 days as
I give my car a nice work out daily, also Its got a big
STi on the new tank which is important
Not sure how the STD one being in the bay with all that
heat may be affected, probably minimal to none but I
know that being in the boot it will be a lot cooler than
before.