Is conventional engine oil recommended in hot region vehicles?
Ambient temperature is one factor in oil selection and synthetic oils can resist heat better than conventional oils. Unless synthetic oil is otherwise recommended for the engine by the manufacturer, conventional oil will hold up in hot regions. It should also be noted that high ambient temperature is considered severe conditions and change intervals must be adjusted to reflect the driving conditions. A more detailed article on synthetic oil is in our Detailed Auto Topics section under Should I Use Regular Or Synthetic Oil.
