I got my oil changed last fall at the local Mercedes dealer. They sell Lexus and Toyota as well and will service any brand of car. They alway have Mobil one and filters in stock. The sticker they put on the windshield to remind you when your next change is due was for 10,000 miles. That is where they recomend changing Mobil one. I change my oil each fall since I live in snow bound Pa and she isn't a daily driver. I don't put 10,000 a year on the car but I think you would be safe as long as you use a good filter.