Every 15,000 miles is what the factory recommends.
Only need drained when water in fuel light comes on. Filter needs changed every 15,000 miles or once a year.
The fuel filter.
5000-7500 miles
Every 4000 miles. Change it when oil is changed, along with oil filters
Every other oil change.
Petrol 2.5Ltr every 60,000Kms or 48 months Diesel 2.9Ltr every 30,000Kms or 24 months
every day//////// when they are defective wich is not very often check with manual for scheduled maintenance
Its a Cummins not a Cummings when you figure that out, it might be easier to get help for what you have.
My garage have changed it at 5213 mileage, which seems very low to me? Any ideas?
Replace the fuel filter every 15000 miles or every one year. Whichever comes first.
Whenever it gets dirty.
When it is dirty.