Ah, more anecdotal evidence on KN filters...this came across my desk today...
"I used K&N filter for years until I read oil filtration test results on the Bob is the oil guy forums. K&N air filters don't do a good job of filtering silica from intake air, and it ends up in the oil. I had a couple Blackstone Labs oil analysis' done that confirmed the results on my 2008 4runner. Same oil, same oil filter, same interval, similar driving conditions, but one test done with OEM paper air filter and one done with K&N. I wish I had kept copies of the results, but suffice it to say I don't use them anymore.
Individual results may vary of course."
__________________ Chris & Sherry Brown - 2005 Itasca Sunrise 31W - W20 and 8.1
2015 Chevy Colorado 4X4 Toad
2021 Chevy Spark Toad
I wonder if there is any data on a Class A ? I’m certainly not impressed with the location of the filter unit on my Journey. Seems like a intake located up and out of the “dirt stream” could have been designed.