"Do what the Maintenance Minder tells you to do." That's it ///

Maintenance Minder A: engine oil
Maintenance Minder B: engine oil & filter; a bunch of inspections
Maintenance Minder 1: rotate tires
Maintenance Minder 2: replace air filter & cabin air filter; inspect drive belt
Maintenance Minder 3: replace transmission fluid
Maintenance Minder 4: replace spark plugs; inspect valve clearance; replace timing belt (V6 only)
Maintenance Minder 5: replace coolant