Anybody ever hear of this stuff being applied  externally to auto
engines and exhaust manifolds? It's a sprayon product of incredible
energy efficiency. use to coat industrial kilns for protection from
heat. I have used it in ceramic work, but never seen it on a vehicle.
Don't know why it would not work to retain heat in the engine and
manifolds. Make engines more  efficient;.

Regards.

John Rodgers
88 GL Driver