Nine days ago the air filter on our 2017 was a only a bit dirty so I cleaned and vacuumed it. Then came the fires and unfathomable amounts of dense and acrid smoke and ash. I have driven maybe a hundred miles in eight days. Got 10,099 miles on that filter and it was filthy. Of course I put a new one in just now. I wonder how this smoke is affecting vehicles, what problems will it cause? Ugh. I think a throttle body and MAF sensor cleaning is in order and I shall purchase more filters.