The filter just looked like it did it's job and filtered the air, trapping the debris just as it was supposed to. Didn't look that dirty to me either. Would have liked to have seen a bright light or the sun behind the filter to see how much light came through it.
I can't tell you how many times I've seen the mech's in a truck shop start an engine, wait til it built oil pressure and then run them to high idle (wide open) and hold them there.
I never condoned that practice but the State inspectors can require you to do what they call a "snap idle" test to test exhaust opacity during an inspection.
I've always told them "if it blows up because you make me do that, you're getting the bill," but doubt if that could be made to stick. Although, if they require it, a decent lawyer might be able to make them eat it if you have witnesses to your telling them that.
That'd be a good video --- have an inspection officer tell you you have to do that, you tell him you don't want to because you are afraid she'll blow, and him making you do it after you tell him IF it blows, he gets to buy it. He continues to insist so you go ahead and KABOOM!
I'd be curious to see what the repercussions would be... ...
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