1998 Toyota Tacoma Warranty, Maitenance, Services Guide - Page 44

of the individual maintenance items that should be performed on your Toyota to help ensure long life and top operating condition. The Scheduled Maintenance Log in the next section of this supplement identifies which of these maintenance items should be performed at each mileage/ month interval. Engine Components and Emission Control Systems Timing Belt (not applicable to T100/Tacoma/4Runner with 4 Cyl.) If the vehicle is operated under extensive idling or low-speed driving for long distances as in heavy commercial use such as delivery, taxi, or patrol car, replace the timing belt every 90,000 miles.A qualified technician should perform this operation. Valve Clearance Inspect for excessive tappet noise and/or engine vibration and adjust if necessary. A qualified technician should perform this operation. Drive Belts Inspect the drive belts for cracks,excessive wear, or oiliness. Replace the belts if damaged, and check the belt tension and adjust it if necessary. After inspection at 60,000 miles or 48 months, inspect every 15,000 miles or 12 months. Engine Oil and Oil Filter Change the engine oil and oil filter when scheduled.Use API SH,Energy-Conserving II multigrade engine oil, or ILSAC multigrade engine oil. For recommended viscosity, please refer to your Owner s Manual. Engine Coolant Drain and flush the cooling system when scheduled. Refill only with an ethyleneglycol type coolant. A qualified technician should perform this operation. SCHEDULED MAINTENANCE 31 Exhaust Pipes and Mountings Visually inspect the exhaust pipes, muffler, and hangers for cracks, deterioration, or - 85 -