Oh don't worry about that, they already caused their havoc

Thanks to the FAA's shoestring budget, they don't have the funds to just issue an STC to allow existing planes to use it. Each plane owner will have to pay for one to be issued. It costs me $200 to get one issued. It costs that much because the FAA hasn't had the budget to upgrade their systems, so handling applications takes a lot of labor. They need to manually verify the make and model of aircraft will not be at risk of adverse effects from unleaded gasoline, since safety > all else

It's a good thing the FAA verifies this, but it shouldn't be such an inefficient process. The only reason it's so inefficient is because conservatives have gutted federal agencies for so many years. MAGA will still point to the inefficient process as an example of why they should keep cutting funding, "see how inefficient the FAA is? They don't deserve our money!"

Hahaha ... heh ... but seriously, MAGA does want brain damaged voters.

Get out of here with your fact-based science, it sounds like you did your own research. We don't like that. Please comply.

Lead pipes are less of an issue that it would seem, as the pipes quickly develop a layer of calcium salts on the inside, preventing the water from actually coming into contact with the lead.

This right here.

If people remember the lead in drinking water contamination in Flint Michigan, its because they had lead pipes that were well coated with the protective layers and had no trouble with lead in water. Then the newly elected city manager changed water sources to cut costs against the advice of the water engineers in the city. The other source of water was more acidic and stripped out all that protective coating and suddenly there's huge amounts of lead in the drinking water from the pipes.