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 ...

That old engine may be tougher than you think — if you treat it right.

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for when ...

Here at SlashGear we advise following engine oil grade and classification recommendations in your vehicle's owner's manual. This holds true even with a high-mileage engine, where experts recommend ...

Jeff Smith of Roadkill Garage pours in some Castrol Edge High Mileage oil into a 318 engine that could use it.

Every time you get your oil changed, the shop slaps a sticker on your windshield. No, not those Faith Hope Love stickers. "Next service: 3,000 miles or 3 months." Most people glance at it once, then ...