I Have A Question about cabin air filters

Re: pricing at dealer vs elsewhere

Just paid $18.95 plus tax at the dealership parts window. Easily changed it myself.

Thatā€™s my kind of woman!
:wink:

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What good does filtering down to 5 microns do if you can pass a bowling ball through the side window?

Simple!

The passenger compartment is always under positive pressure.

Where the outside air is always under negative pressure.

Thatā€™s why cigarette smoke always goes out the window as soon as itā€™s opened.

So, even if the window is open, the air is going to go thru the cabin filter, into the passenger compartment, and then out the open window.

Simple fluid dynamics.

Tester

I see them as more of way to keep junk/dirt out of the HVAC system.

Many moons ago compressed air was free. The original "pay per puff " machines appeared in this area about 20 years ago and were 25 cents for 5 minutes. Similar to the 25 cent 5 minute self service car washes. The last time I used a car wash about 5 years ago it required $2.50! I had 1 tire a bit low 3 years ago and paid $1 for 2 minutes with a barely functional nozzle. The gas station attendant informed me the machine did not belong to them. They were a vending machine like drinks or snacks. The days of actual service stations is unfortunately history. The Chevron service station I worked at when I was 19 years old 1971-1972 asked customers if they wanted their tires and oil checked. All windshields were cleaned while we pumped their 25 cents a gallon leaded regular gas unless the customer declined. The station had 2 lifts plus a tune-up bay with a Sun diagnostic machine. We even went as far as valve jobs. The head shop was only 2 blocks away. There was no need for having a convenience store as the 7/11 was 3 blocks away. The ā€œgood old daysā€ really were.

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Many of the filling stations around here still have a 1 or 2 bay repair shop attached to them

Some of them even manage to stay very busy

Iā€™m guessing itā€™s word of mouth, as some of these shops specialize in a particular type of

Iā€™ll go a little off-topic now

That filling station Iā€™ve mentioned in the past . . . the one that charges about 50 cents more/gallon than ANYBODY else in the area . . . their business seems to finally be drying up. Itā€™s increasingly common to drive by there, and see absolutely no cars there, whereas all the other filling stations have at least a few cars there at all times. And itā€™s at a busy intersection, so location is not a problem.

Iā€™m actually quite please by this development. Serves the owner right. If you charge WAY too much, and have absolutely nothing to offer for that rip-off price, then you SHOULD go under. Even if heā€™s the best employer in the world, heā€™s still charging too much, and by a very wide margin

In the back of my mind, I still think the guy might be using the gas station to write off losses from his other business dealings, or it may be a front for some shady activities

Or maybe the guy is just plain stupid and/or crazy. You donā€™t need a business degree to realize something isnā€™t right with this picture

That would not work with my 2010 Kia Forte. The only key access locks are ignition and driverā€™s door. Since nearly all vehicles have an interior release for trunk or hatch a valet key would only be useful for the glove box or console but not for me.

While there is truth to the above statement, donā€™t forget that anytime a window is open, lots of outside air comes into the passenger compartment, rendering the cabin filterā€™s filtration mute.