ls430lover

hi all if anyone reads my posts in past i am diligent on staying on top of my proactive maintenance. I changed my cabin filter after 22k i know the car manual says 15, and noticed the old filter looks good with the charcoal but there was a lot of debris inside normally i would clean out but there was a lot of small like from tree seeds. anyway point of the thread i changed the filter and was watching how the ac system was working, it seems like it works less hard when it had the new ac filter. i don't mean if the car was 100 that it didnt go to high i mean it was able to circulate air at lower fan speeds and seems to be taxing the ac system lighter with the new filter. i have always been big on staying on top of these kind of things i think down the road it saves the life of compressor etc.
just passing on my observations.
cheers and safe driving to all

Jabberwock

Agree - clogged filter is gonna make the HVAC system work harder than it should. I take mine out about every 3-4 months and clean it with the shop vac - makes the filter last a lot longer.