K & N filters

Turtle n Peeps wrote:

This is what is happening to the inside of your engine. Any more questions? :B

Yup, just proof that damage occurs. The problem with your analogy is that if isn't happening at a few thousand degrees (or whatever the combustion temps.are). And, norhing in my engine is glass, and it has oil to suspend the dirt particles, a filter to remove those particles, etc.