nuclear reactor on ship
every 100,000 miles.
Replace it every 50,000 miles and then you won't have to guess.
The fire alarm beeps every minute to indicate that its battery is low and needs to be replaced.
Just replace it every 50,000 miles or if you suspect it is clogged.
Change it every 105,000 miles.
Garden soil typically needs to be replenished or replaced every 3 to 5 years to maintain its fertility and health for optimal plant growth.
Helmets should be replaced every 5-10 years, depending on the manufacturer's recommendations and the helmet's condition.
It needs replacing every 60,000 miles.
No because every life source needs sunlight
Sourdough starter can last indefinitely if properly maintained, but it typically needs to be refreshed or replaced every 1-2 weeks to keep it healthy and active.
Media is the most viewable source in today's life. Every body has a concerned with it. That's way every body needs communication to media.
You will not know. Just replace it every 50,000 miles.