Here are some additional details regarding oil change intervals for the 2005 Chevy Trailblazer:
* The owner's manual recommends using SAE 5W-30 motor oil.
* The oil filter should be replaced every time the oil is changed.
* The oil drain plug gasket should be replaced every time the oil is changed.
* The oil level should be checked regularly and added if necessary.
It is important to follow the recommended oil change intervals to ensure that your engine receives the proper lubrication and protection. Neglecting oil changes can lead to premature engine wear and costly repairs.