IWhen I rebuilt my car. replacing the whole brake brake system 30 years I went with Dot 5 silicon.
I
t has worked perfectly, I flushed the system with new about 5 years ago, I didn;t notice any difference/

As a car I now use mostly in the summer months, with copper brake pipes and stainless hoses, the brake system hasn;t caused me a single issue since I went over to Silicon fluid.