Engine oil needs to be changed every three months to ensure a vehicle's engine does not become severely damaged. Frequently checking the oil level in an engine is the best way to prevent damage.
Engine oil is an essential component of a vehicle. It prevents metal surfaces in an engine from grinding together and transfers heat away from the combustion cycle. It also cleans engines of chemical by-products of combustion and build-ups.
The most effective way to check the oil in an engine is to allow the engine to cool. Measuring a cooled unit allows for a more accurate reading because the oil shifts in an active engine to prevent overheating and gives a false low reading. Also, when oil is cold it is thick and drains slowly. Heated engine oil can burn skin.
Many new cars have the oil cap positioned directly over valve lifters. These cylinder openers move while the car is running. Accidentally pouring oil on these moving parts can create a serious mess on the engine parts and the person who poured the oil.
