|
|
|
Frequent or extended idling (over 10 minutes per hour of normal driving) or frequent low- speed operation if your vehicle is used for stationary operation Change the engine oil and filter as indicated by the As required Replace the engine-mounted and frame-mounted fuel Every 15000 miles (24000 Inspect the engine and secondary cooling system coolant Every 30000 miles (48000 Flush and refill the coolant. Do not add coolant additive. Every 60000 miles (96000 Note: When adding coolant additive, do not exceed the specified maximum of 48 fluid Note: After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400 579 |