The closest Auto repair shop in Portland ME is Blaise's Euro Pro Shop, they will definitely guide you with auto repair shops in Maine, USA

How often should I get my oil changed? Our company agrees that a driver should have their oils changed every 3,000 - 7 thousand miles, However you can always refer to your owner's manual which covers the recommended interval for service on specific makes and models as it may be different than what is listed in this article or others like them out there online! There are many newer vehicles today that will tell us when they need attention so keep an eye open while driving around town checking if any flags raise indicating something might very well go wrong with our engine soon enough unless we take care of these problems right away, Visit Blaise's Euro Pro Shop at 211 Valley St, Portland, ME 04102 or call (207) 467-5995 to schedule an appointment