When should a driver check oil levels?

Checking oil levels is particularly important when going on a long journey because it helps ensure the vehicle is in optimal condition for extended driving. During long trips, engines can work harder and may consume more oil due to higher temperatures and increased operational demands. Monitoring oil levels before embarking on such a journey can prevent potential engine damage caused by low oil levels, which is vital for maintaining lubrication and cooling in the engine.

While it's also important to check oil levels after an oil change to ensure the correct amount has been added, and regular monthly checks provide a good maintenance routine regardless of how often the vehicle is driven, the most critical time to assess oil levels is before a long trip when the engine is likely to be under greater stress.