Somehow this whole topic reminds me of a thread over at Edmunds.
I mentioned that in some instances, on vacant roads, in the middle of the night, on a gently graded downhill I'll switch it to N and just roll, letting it idle.
(Didn't even bring up FAS)
Wow! What a mistake that was.
Even a moderator jumped in and compared it to an experience he had when he rode his brakes all the way down a steep mountainside. When he was suprised by an unexpected light on the bottom and it was red, he "Careened through the red light uncontrolled because of his overheatd brakes" then said "Hey, it's your life not mine"
It was the last time I ever posted FE tips there.
The HCH clearly does not maintain brake pressure with the ICE off.
Which brake pressure are you referring to?
Yes, the brake vaccume assist
is limited but the important hydraulic (Which acutally stops the car) remains uneffected.