It's an engine, not a child. Cold weather will not hurt it. Antifreeze will stop the block from cracking. Hood insulation was discontinued, then started being standard again on certain models. My Unlimited Sahara has a build date of 4/07 and has the hood insulation. I think it is mostly for noise. It also stops the outside surface of the hood from getting as hot with the engine running. It does nothing to keep the engine warm in the winter when your Jeep is sleeping outside. An engine block heater may be useful in extreme cold to assist with starting. You can get them at the dealership if you don't already have one installed.
My X came without the insulation, and I really don't miss it. I don't think it does anything value added - noise difference is nil. I don't have to worry about it collecting dirt and coming loose. Big deal, must have saved Jeep $1 not to put it in. Whatever.
I am irritated every time I open the hood and see that dangling wire without the under hood light, though. WTF?
'12 X 2dr 6spd Freedom Top RED
NITTO Trail Grappler 285-70-17R" on Fuel Hostage wheels - 2" BB lift.
IPF 55w Sport Lights on QuadraTech Windshield mounts. IPF out front on light bar.
Can you get the hood insulation on an X? I want to keep this thing as quiet as possible for interstate traveling... Is it worth it?
I have an X without, and honestly I don't even hear the engine. I have a hardtop, and it is very quiet inside- except during a hard rain, and then the rain hitting the hardtop is pretty damn loud. But engine noise is never an issue