This is a useful and quick way to remove air at the lever/plunger. It will do absolutely nothing for air in a caliper or line. PS. Why did you remove air from the syringe if you then just dripped brake oil into the plunger, lol? Removing air only afftects a closed system.
Bro My bicycle front hydraulic brake got squishy. By default it has some oil left in it can i combine with different mineral oil. Can u suggest cheaper and best mineral oil