There is no tray on my 13 I4., there is only a cover, but there is no marking to indicate the direction. The filter has the arrow, but my brother forgot up or down.The tray that holds the filter has the air flow direction labeled with an arrow. The filter should also have an arrow on it.
On the 8G, both arrows point down.
I'm sure you are right that there is no tray, but that doesn't sound correct. Haven't changed mine yet, but I remember seeing a tray that held the filter in place in various youtube videos and writeups. They were for the '12s but.....There is no tray on my 13 I4., there is only a cover, but there is no marking to indicate the direction. The filter has the arrow, but my brother forgot up or down.
The factory one is just a plain paper filter, the fram fresh breeze one claims to have carbon and baking soda to help the smell??!?The maintenance minder will tell you when. Wal-Mart sells a Fram that looks just like our OE unit for $14.
I change mine @ 20,000. Change the engine air filter at the same time. Good to start checking them between 10 and 15k in case they get really dirty sooner. Depends on the driving conditions. Dryer, dusty areas will probably need replaced between 10-15k.How often should you change the air filter and which brand do you guys recommend?