and full-synthetic oils, such as its Ultra Platinum, High Mileage, and Platinum Euro lines. Havoline is a motor oil company with a history of experimentation and innovation. It offers a broad ...

Read more: 11 Best Motor Oil Brands In 2024 ... For instance, if your car uses 5W-30 synthetic oil, upgrade to high-mileage oil with a similar 5W-30 rating. Another drawback is the extra cost.

If you’re the diligent type who checks your engine oil ... synthetic blend, and “extended life” and “high mileage” conventional oils—may leave you wondering which is the best for ...