* Engine Size & Model: There were various engine options for the 1998 Lancer. You need to know the exact engine size (e.g., 1.3L, 1.6L, 1.8L, etc.) and model (e.g., GL, ES, etc.) to determine the correct oil type.
* Owner's Manual: The most reliable source for your vehicle's oil requirements is your owner's manual. It will specify the recommended oil viscosity (e.g., 5W-30, 10W-40) and type (synthetic, conventional, etc.).
* Local Conditions: Factors like your location's climate and driving conditions (frequent short trips, towing, etc.) can also influence the best oil choice.
How to find the right oil:
1. Locate your owner's manual: It will have the most specific information for your Lancer.
2. Check your engine: If you don't have the owner's manual, find a sticker on your engine or near the oil fill cap. It might list the recommended oil type.
3. Consult a local mechanic or a reputable auto parts store: They can help you determine the right oil based on your vehicle's specific needs.
Important Note: Using the incorrect oil can damage your engine. Always follow the recommendations provided by your owner's manual or a qualified mechanic.