What is the cost per quart for additional synthetic oil?

The cost per quart for additional synthetic oil is typically reflective of the pricing strategies in the automotive service industry, particularly for high-quality products like synthetic oil. In this context, a price of 8.99 aligns with the common market rates for synthetic oil, which tends to be higher than conventional oil due to its superior performance and longer-lasting properties.

Synthetic oil is engineered to provide better engine protection, improved fuel efficiency, and extended oil change intervals, making it a preferred choice for many vehicle owners. The other prices listed may represent different grades of oil or be too low to reflect the average cost of synthetic oil in current markets. By choosing 8.99, this reflects a realistic expectation based on industry standards for synthetic oil pricing.