Synthetic oil used to be something only performance cars needed, but not anymore. Now it’s the manufacturer-recommended engine lubricant in many mainstream vehicles, such as the Subaru Forester ...

Motor oil also holds in suspension sludge, harsh chemicals, contaminates and abrasive particles — things that cause engine ...

Synthetic engine oil offers far superior lubrication as compared to conventional mineral-based oil. Mineral engine oil is almost entirely natural while synthetic oil is the product of chemical ...

Despite being less expensive than its competitor's synthetic offerings on Amazon, the company's self-branded oil is well-regarded among drivers. At under $25 for a five-quart bottle and with over ...

What makes them synthetic, and what are the pros and cons when compared to regular engine oil? Whilst regular engine oil is made from circa 70-90% of base oils and additives, synthetic oil tends to ...

Got a question about cars? Write to Car Talk write to Ray in care of King Features, 628 Virginia Drive, Orlando, FL 32803, or ...