On Thu, 11 Mar 2021 15:00:25 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
Custos Custodum wrote:
Maybe we shouldn't get too fixed on the idea of "dissolving". There
can be no question that ethanol has a detrimental effect on perspex.

I'd be surprised to see Perspex used on a car fuel system. ;-)

My 1963 Mini had a short length of transparent plastic tubing leading
up to the carburettor (not perspex, but I can't remember the details).
Eventually it hardened and fractured.