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The 2003 Toyota Corolla requires 5w30 oil and 4.4 quarts. It is important to change the oil every 5,000 to 10,000 miles to keep the engine running smoothly. Neglecting to change the oil can lead to engine problems. Using high-quality oil is crucial for optimal engine performance. Not replacing the oil can result in issues such as a strong burning smell, which should be addressed promptly to prevent potential danger. Poor quality oil may cause the engine to fail and reduce gas mileage. Additionally, engine knocking noise might occur as a sign of trouble.
What kind of oil is recommended for this car?
The 2003 Toyota Corolla comes with a regular 1.8L inline-4 engine that needs 4.4 quarts of 5W30 oil under normal conditions, but you can use 10W30 oil if the temperature drops below freezing.
I used 4.5 quarts of extended high-mileage full synthetic oil with a filter rated for 20,000 miles and changed it after driving 20,000 miles. The oil still appears to be in good condition.