https://www.newsweek.com/california-blue-dots-joe-biden-roseville-1544292
I’m inclined that those blue dots are “leave alone” markers for and from the rioters
I have a bulk tank of 100LL avgas at my shop for hotrods and old cars that sit most the time.....it never goes bad. Since I have it available that is all I use in my mowers and chainsaws. They love the octane and it will never plug up the carb.