I recommend changing it every 50,000 miles unless it is a permanent filter that requires no maintenance.
Dex-cool is recommended to be changed every 5 years.
I don't, but change the oil and filter every 3000 miles religiously and you will be saved.
Every time you change the oil, change the filter. I recommend every 5,000 miles and I also recommend you use an AC/Delco filter, which is highly rated.
How often should you change the fuel filter?
Change your oil/filter every 5,000 miles if you use conventional oil and every 8,000 miles if you use synthetic and you drive under normal conditions.
I looked for an answer to this question in my Haynes manual and found nothing about how often to change the timing chain. It DOES, however, to into great detail about how to do it. FriPilot simply because they dont have a timing chain on the 2.2 ecotech
Change the oil filter every time you change the oil.
How often need to change the fuel filter for a 2001 BMW 325i?"
Change the oil filter every time you change the oil.
I change mine every 35K.
The word filter explains it all, alike your house AC filter that you change so often to ensure you stay cool, I recommend that you change your gas filter twice a year.
You should change a furnace filter every 2-4 months.