Quick-lube shops mark up synthetic oil by 200% to boost profits while most cars run fine on conventional oil at half the price.

Regular car maintenance, including oil changes, is essential for vehicle longevity and performance. Failing to change your oil regularly can compromise your safety and the lifespan of your vehicle.

For many years, car owners have known to follow the traditional 3,000-mile rule for oil changes. But, with modern advancements in engine technology and the popularization of synthetic oil, ...