Of all the maintenance you perform on your vehicle, none will extend its life more than regular oil changes. But, that begs the question, “what is a regular oil change?” Most manufacturers recommend changing the oil somewhere between three and five thousand miles. But, depending on what you drive, and how you drive it, those numbers may actually be far too low. You might be able to get more than twice the recommended mileage, especially if you use synthetic oil. While it never hurts to err on the side of caution, replacing perfectly healthy engine oil three or four times a year doesn’t make sense either. There are several methods to determine if your oil still has enough viscosity.
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