Be fair,
I didn't know that either, an I am a "technical" person,
concrete hydrates, thats why Ice is used when concrete batching such as on dams but "technical" at what?????????????????
Supermarket fuel accounts for the majority of fuel sold here in OZ, to the extent that the duopoly, namely Woolworths and Coles are under investigation for all sorts of things, pricing etc but hey the Government is weak and they, Woolworths and Coles, are too big so nothing will happen.
The other 'good' thing is we are now shutting down all our refineries and are importing all fuel rather than process our own its cheaper to import Petrol from????????????????.
Fuel Quality, brands, etc now means nothing.