Hood Insulation?

[The Evil Twin]

In the cab? I always assumed it was to protect the paint on the hood.

Maybe in some applications. It’s mostly to reduce exterior NVH, and does provide some acoustic benefits in- cab. It also helps to keep heat in the engine bay to increase engine efficiency.
The temp inside the engine bay is not going to get the paint hotter than direct summer sun.

 

[McE]

The temp inside the engine bay is not going to get the paint hotter than direct summer sun.

My white truck would disagree with you there

Never heard the efficiency side of it before. Wouldn’t that have little or no effect once the vehicle was in motion?

 

[The Evil Twin]

My white truck would disagree with you there

Never heard the efficiency side of it before. Wouldn’t that have little or no effect once the vehicle was in motion?

I honestly can’t say. I don’t run the algorithms for it All I know from 40 years of being a gearhead is the reasons for it in order of importance.
I could see turbo heat on a 6.7, but probably not. My wife’s car has more hood insulation than I do and her TDI (gas) turbo is on the back of the engine.

 

[Nu2SDF350]

Maybe in some applications. It’s mostly to reduce exterior NVH, and does provide some acoustic benefits in- cab. It also helps to keep heat in the engine bay to increase engine efficiency.
The temp inside the engine bay is not going to get the paint hotter than direct summer sun.

For NVH reduction, everything must help as my Lariat is equipped with the factory acoustic windshield. I think these are the hidden features Ford includes based on configuration levels. Two things immediately impressed me with my new F350, the quietness of the cabin while driving and the smooth HD ride quality.