What type of oil to use for a 1997 Mitsubishi diamante?

For a 1997 Mitsubishi Diamante, it is recommended to use 10W-30 or 10W-40 motor oil, depending on the climate and driving conditions. Always opt for a high-quality, API-certified oil to ensure optimal engine performance and protection. Additionally, consider synthetic oil for better performance and longevity, especially if you drive in extreme conditions. Always refer to the owner's manual for specific recommendations.