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holstein13's avatar
holstein13
Explorer
Dec 11, 2014

Use of engine brake prohibited

I was driving over a mountain pass in a passenger vehicle between Las Cruces and White Sands and noticed a sign that read "Use of engine brake prohibited."

That's the first time I've ever seen such a sign and was wondering why this is? It's near a military installation and I was wondering if the noise of engine brakes could cause them misreadings on their missile tests or if it's something else.

Also, are modern day engine brakes loud? Even when I use mine on the highest setting, I can't hear a thing from inside the coach. I'm thinking that they are a lot quieter these days, but then again, maybe my coach is just well insulated.

I am also assuming that engine brake refers to Jake Brakes and not simply gearing down.

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