Clock enough miles and your engine develops quirks. Not failures or crises. Just quirks. A little oil burn here. A tiny seal seep there. And you're searching for that youth serum for engines that aren ...

We may receive a commission on purchases made from links. If your vehicle is due for an oil change, the oil of choice is either synthetic or conventional motor oil. But if your car's odometer is over ...

High mileage oil sits in the same aisle as conventional and synthetic, but it promises something different: extra protection for engines that have already lived a long, hard life. I want to unpack ...