Depends on the vehicle.
-Spark plugs usually between 30,000-50,000miles
-fuel filter every 30,000-60,000miles
-tires depends on the tires, but definetly not 15,000miles…
-oil on the other hand, on newer cars don’t require oil change till 7,500/10,000/15,000miles, up to even 20,000miles. So like I said, it depends on the vehicle.