brake fluid

I ran silicone in my ebody for over 10 years and never changed it. Parts still
looked good and no rust.

I did read a SAE posting a year or so back about how silicone needs to be
purged out every 4 years to keep pedal feel and keep contaminants for
doing any damage to the system. I like it and when I redo my entire system
next year I will go with the silicone. FWIW
I have to agree but be shour your brake hoses are good .