Regular car maintenance is essential to optimal performance. Though many mechanics and repair shops agree you must maintain your car, they disagree on the maintenance schedule. The car's manufacturer will often set a maintenance schedule. The factory scheduled maintenance is what is often referred to as 30/60/90K maintenance. It means you should take the vehicle for service every thirty thousand miles even though the car feels fine. Read on to find out more: What Does the 30/60/90K Involve? The 30/60/90K maintenance schedule is primarily about taking the car for service after traveling the 30k miles. However, the service itself will begin by evaluating all the car's major systems and components. The service will also include fluid changes, including coolant, transmission, engine fluids, and oil. It will also involve evaluating, repairing, and replacing car filters, including air, cabin, and fuel filters. Wheel rotation and alignment will be done during the service. Computer ... read more