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What kind of oil does 2003 Jeep Grand Cherokee Use?

The type of oil a 2003 Jeep Grand Cherokee needs depends on the engine it has. There were several engine options for that year. To know for sure, you need to check your owner's manual. It will specify the recommended oil type (e.g., 5W-30, 10W-30) and viscosity.

However, common oil types used in 2003 Jeep Grand Cherokees were typically conventional or synthetic blend motor oils in the viscosity ranges mentioned above. Always use the weight and type recommended by Jeep for your specific engine to ensure optimal performance and engine longevity.