The Dirty Truth About How Often You Need Your Oil Changed

Lt Col Charlie Brown I change mine every 5,000 miles. Well over half my miles are on the highway going to and from school.

Good read, thanks

And the type of drive train. Turbo chargers run at very high speeds and require not only a high grade oil, but it must be clean. Certain vehicles use engines that use oil to assist in the engine operations (e.g., BMW vanos). If you’re running a vintage/classic engine, you might need different engine oil for the flat tappet. Diesels have their own oil.