To find the correct oil:
1. Check your owner's manual: This is the most reliable source. It will specify the recommended oil viscosity (like 5W-30, 10W-30, etc.) and type (conventional, synthetic blend, or full synthetic).
2. Look for a sticker under the hood: Sometimes manufacturers place a sticker with oil recommendations near the oil filler cap.
3. If you can't find the manual or sticker: A good starting point for a 2002 Jeep Cherokee is 5W-30. However, this is just a suggestion, and using the incorrect weight could damage your engine. Using a heavier weight oil in hot climates or a lighter weight oil in cold climates can also negatively impact performance and fuel economy.
Oil Type: While the manual will specify this, many Jeep owners successfully use conventional, synthetic blend, or full synthetic oils. Synthetic oils generally offer better performance and longevity, but they are more expensive.
Important Considerations:
* Climate: Use a weight appropriate for your local climate. Lighter weights (like 5W-30) are better for cold climates, while heavier weights (like 10W-30) are better for hot climates.
* Oil Certification: Make sure the oil you choose meets the specifications listed in your owner's manual. Look for certifications like API (American Petroleum Institute) and ILSAC (International Lubricant Standardization and Approval Committee).
In short: Find your owner's manual! It's the best and safest way to determine the correct oil for your specific 2002 Jeep Cherokee Limited. If you cannot locate the manual, consulting a Jeep mechanic or parts specialist is recommended to avoid potential engine damage.
