Do pete 579 air filters last forever?

I do mine once a year if I’m mainly on the road but if I do more bucket work the road work I do every 6 months with the dust, I also have 2 filters though

once a year should be minimum IMO but pull it out and look at it

 

An ounce of prevention is worth a pound of cure... I change mine every 6 months.

 

Restriction gauge may not be working or you may have a leak in the intake piping.
I would check all clamps and change filter.
Do you do regular oil samples?

 

Doing hopper and pneumatic work I changed mine out every 3-4 months or so. Now that I’m not in dust all the time my current filter has 130k on it.

 

what does your OA say?

 

OA ( oil analysis)

 

I have a 23 579 and it just turned over 30K miles and when I get on it hard to climb a hill it will pull 15% restriction. Oil filter about the same under the same load.

 

China Syndrome,,,tap on the gauge. They certainly don't last forever but if in a non-dusty environment, they could last 2 years. Many air filter covers today are just held on with clips, and easy to take a look see.