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 ...
If you own a car, whether it is a brand new or a few years old, one of the simplest and most important things you can do to keep it running smoothly and efficiently is to change the engine oil on time ...