SHHH, don't tell people that the engineers that designed the system knew what they were doing. K&N all the filters!!You think you're saving money with a K&N, but you're really not. You're getting an inferior product.
K&N filters pass nearly 50x more dirt through than OEM filters do, so you're kind of defeating the purpose of a cabin air filter by using something with a low filtration efficiency. In addition, they clog up and become restrictive 3x faster than OEM filters, so you're servicing them 3x as often, and it isn't a simple "out with the old, in with the new" process. You have to buy the cleaning kit, wash the filer, rinse the filter, wait for it to dry completely, then oil the filter, carefully.
A $11.50 ACDELCO filter will filter out FAR more contaminants, need servicing 1/3 as often, and will be far more convenient to service.
HmmWhen I went back to look at my order from December where I bought the air filters, I noticed something new: There is now a line in the description (which wasn't there in December) on the CF181 that indicates "Except Reinforced Electric Heating/Defroster System(C32)". There is now a new part number CF197 with the added description "REINFORCED ELECTRIC HEATING/DEFROSTER SYSTEM(C32)," It appears that those of us with Diesels might have a different cabin filter number now, but I wonder what the difference is between the two.
Useful when it's too cold or hot to have the windows down. I only need my cabin air filter about half the year for the same reason - my windows are down.I never could understand the purpose of a cabin filter. When the weather is nice 8-9 months of the year I drive with the window down or part way eliminating the purpose of a cabin filter. I installed rain guards on the cruze just for that reason.
Ha, you are even more frugal than I am. Do these carbon sheets add restrictions?All you have to do is buy aftermarket charcoal filter sheets (about $6) , cut it to size, place it over the top of the cabin filter and just replace the sheet when needed. I replace the sheet every year and have only bought 1 (cheap) filter which still looks like new.
Amazon.com - Aftermarket Holmes HAPF60PDQ-U 4-pack Air Purifier Carbon Replacement Filter - Holmes Arm And Hammer Filters