Had my car serviced today.

[AisinW]

I change/wash cabin filter every year. Denso and Bosch air filter is fully fiber glass, washable with laundry detergent. They are very durable unlike other brands.

The air filter is relatively ok after 4y/40k miles, just open and vacuum some of the dust or leaves at the bottom of the air filter housing. My city is very clean and rarely have traffict jam.  I prefer Denso air filter because it needs to be very clean, tight, and flow well for the engine.  Cabin filter is relatively porous not as dense as engine air filter. 

[MagicBoy]

On 9/25/2022 at 12:11 PM, Bruce Lea said:

What about the air filter inside the car, when does that change?

It's included now, they've changed it on mine twice.