Mine is about 2 years old. I took it out last week and it doesn't look dirty on the bottom of it, but it was a bit dusty when I tapped it on something.
Would it be overkill to replace it once a year, even though I only drive it about 3500 miles a year, in mostly non dusty conditions?
Would it be overkill to replace it once a year, even though I only drive it about 3500 miles a year, in mostly non dusty conditions?