Is there any nugget of shade tree mechanic wisdom more cherished than the 3,000-mile oil change interval? Passed down ...

Friends often ask me what kind of oil is good for maintaining household cars, and every time I say that full synthetic oil is ...

You're staring down two shiny jugs at the auto parts aisle. One says semi‑synthetic, the other full synthetic, and you're thinking maybe they're basically the same, right? Maybe that's just a ...