You could not be any more wrong about the brake system on the Raptor. It is a simple hydraulic system and as such it is important to keep the reservoir to the full line as the brakes wear. When it is time to do a brake job it is very important to not push the cooked fluid in the calipers back into the system as it will ruin the antilock brake module. Instead crack the bleeder valve slightly and push the contaminated fluid into a container. If you don't understand how to do this I suggest you do some research.Brake fluid should not really ever need to be topped off, unless you are replacing a bunch of parts, or replacing all of it like for a flush... It is just a sensor to let you know that your components are wearing out (pads and rotors etc).
Not a huge deal if you do, just means that next time you do a brake job and conpress the calipers to reinstall, it will overflow the reservoir since it is a simple hydraulic system and is now "overfilled".
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