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The recommended oil for a 2012 Toyota Highlander is 0w-20, and the capacity is 4.6 quarts. It's important to change your oil regularly to maintain engine health, typically every 5,000 to 10,000 miles. Neglecting oil changes can lead to engine problems. Using high-quality oil is essential for optimal engine performance. Neglected oil can result in issues such as a burning smell, requiring prompt inspection to prevent potential engine damage. Poor-quality oil may cause the engine to malfunction, leading to decreased gas mileage and potential knocking noises.
For the 2012 Toyota Highlander, the ideal viscosity grade options for the 2.7L 4-cylinder engine are SAE 5W-20 or 0W-20, while the preferred choice for the 3.5L V6 engine is SAE 0W-20. Toyota recommends using engine oils that meet the SAE viscosity requirements and carry the ILSAC Certification Mark. The engine oil capacity is 4.6 US quarts (4.4 liters) for the 2.7L engine and 6.4 US quarts (6.1 liters) for the 3.5L engine in the 2012 Toyota Highlander.