Here's what you need to consider:
1. Consult your Owner's Manual: The most reliable source of information is your 1994 Mitsubishi 3000GT VR4 owner's manual. It will specify the recommended oil type, viscosity, and API service classification.
2. Oil Viscosity:
- For a 1994 VR4 with 160,000 miles, it's likely that you'll need a higher viscosity oil than a brand new engine. Look for something in the range of 10W-30 or 10W-40.
- Check your owner's manual: It may recommend specific viscosities based on your climate and driving conditions.
3. API Service Classification:
- For a 1994 VR4, look for an API service classification of SN or higher. This indicates that the oil meets current industry standards for performance and protection.
4. Synthetic vs. Conventional:
- Synthetic oil: Offers superior protection, especially for high-mileage engines. It lasts longer and can improve fuel economy.
- Conventional oil: Less expensive but may need changing more frequently.
Important Notes:
* Consider your driving conditions: If you frequently drive in extreme temperatures or experience heavy traffic, consider a heavier viscosity oil.
* Consult a mechanic: If you're unsure about the best oil for your car, consult a qualified mechanic for personalized advice.
* Use the recommended oil change intervals: This ensures optimal engine performance and longevity.
Example Oil Recommendation:
If your owner's manual recommends 10W-30 oil, you might consider a synthetic blend like:
* Mobil 1 Extended Performance 10W-30: Offers good protection for high-mileage engines and is generally available.
Remember: Always check your owner's manual for specific recommendations and follow the recommended oil change intervals.
