High-mileage oil isn't some secret elixir reserved for 20-year-old Honda Civics with a mystery stain on the headliner and 3.5 working speakers. It's real. And it serves a purpose — mainly for engines ...

To answer the question of whether high mileage oil can be used in low mileage cars, let's first define exactly what it is. A high mileage oil is made with seal conditioners and additives that minimize ...

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 ...