How can I tell when my car's air filter needs to be changed? It's not buried under under an inch of dust - but there is a light film of dust on all the surfaces. Are there any photos out there that will teach me to tell the difference between fine and replace?Auto air filter - what are the visual clues to replace it?the way i tell,is that i hold it up to the light and if i cant see light through it,then i replace it,also you can roll it around a trouble light too.Auto air filter - what are the visual clues to replace it?Can you see sunlight through it?
No?
Replace it.Auto air filter - what are the visual clues to replace it?I replace mine once a year or every 12,000
miles.
Its cheap prevenitive maintence.
