Quite contradicts the drive till it fails system taken by our car users.
On the subject of coolant (pg 25)the different colors are added to coolant to identify them and not mix with each other. Eg, regular , long life etc,.and active ingredients.
And there's no such thing calld a "tune-up" in modern vehicles.while All maintenance and Preventive maintenance inspections are recommended for climates/driving conditions like ours by manufacturers are not taken in to account
Looks like the typical maintenance intervals have been taken straighe out from brochures for ideal driving conditions with the ambient temp @21'c no dust, no pot hole and definitely no traffic!