Would a little DOT 3 brake fluid hurt?
Wouldn't a better question be " would it help?" The main reason I see for running fuel adds with our old pumps and injectors in these days of ULSD is lubricity. Oil lubricates. Brake fluid is mostly glycols and ethers with a relatively low flash point. Probably do more harm than good.
Begel was struck correctly. Now can someone please hit him harder the right way again?!

The damn thing fogs the road like its a smoke screen from a tank, and its soo bad it leaves a film on your windows if you get behind him. I have no idea how much he pays the cops to stay out of jail but it must be alot.