Every 80,000 km (50,000 miles) using Toyota Super Long Life Coolant (SLLC).
Toyota D-4 Direct Injection, which requires high-pressure fuel pumps and specialized injectors. Critical Maintenance and Repair Procedures 1az fse engine toyota repair manual
Direct injection can lead to intake valve deposits; regular PCV valve cleaning (every 50,000 km) is recommended. Every 80,000 km (50,000 miles) using Toyota Super