@Xulfiqar
Is toyota GL-3 transmission/gear oil is superseded by GL-4 gear oil. If yes can mix of both be used.
(car manual recommends API GL-3 SAE 75w-85).
Secondly, can silicone grease be used in font brake disc cylinder/piston boot replace job where the red/pink lithium grease is recommended.(in short can silicone grease be mixed with dot-3 brake fluid in piston/cylinder.)
I know you recommended silicone grease for caliper slide pin boot job.