Is there a time limit on filters?

[Scout1]

My wife's TT hasn't been run much this winter so it has 2000 miles and 7 months on the oil change. I'm thinking it's time to change the oil, but why can't I leave the filter in there? It's a PureOne and with only 2K miles, it hasn't been used much.

Is there a time limit on filters so it's not a good idea to leave it in for more than six months?... Oil soaked media or something like that?

 

[JHZR2]

my saab is set up to be able to do up to 18k mile OCIs. The system logic also performs a 2-year countdown. On a cartridge filter at least, with a green-rubber (different type perhaps than is standard ona run of the mill filter) gasket, 2-years is possible. Not necessarily preferred, but 2yr/18k miles must be the design window, so thus likely more than that even.

A year is certainly doable. Id likely not go much beyond that, as youll build up condensation, etc.

JMH

 

[Triple_Se7en]

With those miles accumulated, once a year is good enough for both filter and oil - as long as the engine gets to normal temperatures regularly - plus not all city-like/stop and go miles driven.