this post was submitted on 07 Nov 2023
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[–] [email protected] 4 points 1 year ago (1 children)

For Formula 1 cars it is 5mg/l. Old four star leaded has about 840mg/l but is now banned. In the UK low lead petrol is available from a small number of specialist garages for classic cars which cannot run on unleaded and contains about 75mg/l.

So while none is the best, this is a very small fraction in comparison as to what it used to be, and it also is to cover cross contamination purposes.

[–] [email protected] 11 points 1 year ago* (last edited 1 year ago)

get those engines modified so they do take unleaded, shit is bad for anyone breathing it

edit: also, I'm not sure I completely buy it. Lead was only picked as an additive because it was the cheapest available. Before it was even picked, there were other economically and mechanically viable alternatives. The commercial aircraft industry switched to a different additive seamlessly once lead was legislated away. The studies about this are abundant and easily found; sounds like some old farts just managed to squeeze by with a bogus excuse that no-one scrutinized.