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2018 Q50 AWD Red Sport
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Discussion Starter #23
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2018 Q50 AWD Red Sport
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Discussion Starter #25
His test procedures are a far cry from the approved testing methods used for air filters. Flour from a sifter dumped on the filter? Seriously? His Rube Goldberg contraption is a testing joke IMHO.

Regardless, his good old boy tests essentially show similar results. K&N filters are garbage from a particulate removal efficiency standpoint. That alone should steer anyone concerned about crap getting into their engine away from their filter.

The 0-60 test was worthless. Too many variables other than the filter could account for the tiny difference in ETs.

Where were the static pressure drops after running a consistent particulate concentration across the filters over time? \That's another problem with the oiled or dry, reusable filters. Initially, they pass more air but they lose that capability rapidly as particulate loading goes up. The dry paper filters are the best at that over time also.

I put the Purolator filters in and will change them every 15,000 miles. I see no reason to spend more money on filters that may be reusable but don't protect the engine as well or as long as single-use paper filters.
 
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I got hooked on Amazon subscriptions. I get Wix brand filters every 3 months. Until my wife started cutting our subscriptions back. She told me I get only 1 filter every 3 months.
 

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I change engine & cabin air filters every 10k. They're usually pretty dirty by then. I'm in Arizona so lots of dust.
 

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2018 Q50 Red Sport 400 AWD
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I order my filters from Filter head's.com, received them today, they have changed to Purolator, $11 U.S. more than half the price, I would pay here.
I see you got the Red Sport-specific filter.
 

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My cone filters after 11k-12k miles. CAKED on. I have some very rice-tastic replacements on the way
91699
 
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