The leak would be internal so no fluid loss! What is happening is the fluid is leaking past the solenoid back into the system just like if u were to release the valve. Have u ever been in a rv or travel trailer when u turn on the water pump it pumps up and stops then lots of them after a few min maybe 10-15 20 min it will kick the pump back on just for a split second because water is leaking back past the pump!! the pressure switch activates the pump just for a second to pump it back up again! In your case your foot is the pump so u flick the switch then when u pump the brakes it then holds the pressure until released. A lot of times people pump brakes way harder than ness so valves start to leak back over time. No need to pump the brake any harder than it would take to hold u on the incline with your foot on the brake. Worst case scenario would be every 5 min go back over and tap the brake but normally it will leak down from high pressure and then stop leaking still leaving u with plenty of pressure to hold the hill. Best thing to do is not to king kong the pedal to begin with and the leaks wont happen. Or every couple years rebuild the solenoid no big deal. Not to mention I would activate the line lock then let the unit settle and throw it in park!
I think if u are trying to use it all the time like a parking brake prob not. But if u want to use it like I would when stuck on a hill and need to hold your position while hooking up a winch thats the way to go. I decided I'm doing it. when I install it I will do a write up on it with pics etc.
I painted shift letters with florescent orange, and installed easy dome light over dash area. Helps reading map too.
u would have to face it down maybe...... if u face it up it will glare off of windshield left to right would bother driver or passenger. U have to have it facing down and u don't want to be able to see the light itself only the light it provides. thats why they have recessed lighting in houses.
I think it depends on how they are wired internally. I know some light bars include an extra wire to use for a dimmer circuit and others you can just reduce the power but they will only go to a certain point before they shut completely off. Not as much adjustment as an incandescent bulb.
I was thinking about a UV light facing down from the roof and florescent paint on the letters.
