Months is not the metric, miles is. There is a maximum amount of time you want to leave the oil in but most people should be changing it sooner than that for mi

Months is not the metric, miles is. There is a maximum amount of time you want to leave the oil in but most people should be changing it sooner than that for mileage reasons. Follow the manual on your car. In my case that is about every 3 months based on how much I drive. My brother drives a lot more, almost 2,000 miles a month, so he does it every other month.