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zzyzzx · 06-13-2008, 02:27 PM

Specifically the stock air filter.

My car has 20,000 miles on it, and it still has the original air filter in it. Normally I wouldn't let it go that far, but I just got the car. The Owner's manual implies somewhere inbetween 15,000 - 30,000 miles.

I've been driving fuel injected Escorts since Jan 1985, and something like 15,000 - 20,000 miles would be a normal air filter replacement schedule for me (I' have to check my maintenance logs to get the exact number, but it's something like that). But after looking at this Alero filter, it's easily 2X as large as the one for the Escort, so maybe it really does last 30,000 miles?

06-13-2008, 02:27 PM	#1
zzyzzx GLS member Join Date: Mar 2008 Location: Baltimore, MD USA Posts: 5,529	How often to change the air filter Specifically the stock air filter. My car has 20,000 miles on it, and it still has the original air filter in it. Normally I wouldn't let it go that far, but I just got the car. The Owner's manual implies somewhere inbetween 15,000 - 30,000 miles. I've been driving fuel injected Escorts since Jan 1985, and something like 15,000 - 20,000 miles would be a normal air filter replacement schedule for me (I' have to check my maintenance logs to get the exact number, but it's something like that). But after looking at this Alero filter, it's easily 2X as large as the one for the Escort, so maybe it really does last 30,000 miles?