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 and ...

I recently purchased a vehicle and discovered the previous owner had used synthetic oil up until the dealership got it – and they put regular oil in it. Should the engine be flushed out before going ...

Synthetic motor oil offers many advantages over conventional engine oil. Synthetics resist chemical degradation far better than traditional oils, and they typically have a higher viscosity index that ...

CR shares five things to know about oil changes for your car, including when and how often to change the motor oil and ...

Are there specific filters to use when using synthetic oil? Even though synthetic oils can last longer between oil changes, my Nissan dealer says the oil filter is a regular filter designed for ...

More than a few of us have hit this brick wall — you take your new car to the dealer for its first oil change, but you feel a bit of sticker-shock when you pay the bill because they used full ...

With so many available motor oil brands and several labels like "synthetic blend," "full synthetic," or "conventional," the process of choosing one for your car has now become somewhat tedious. It ...

So, you mixed synthetic oil and conventional oil. You screwed up, and now you're wondering if what you did will have catastrophic consequences. Whether it was a simple accident or if you did it on ...

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 ...