You're supposed to perform scheduled maintenance. You are generally not limited in which mechanic you use. A mechanic will simply look in the service manual (or

You're supposed to perform scheduled maintenance. You are generally not limited in which mechanic you use. A mechanic will simply look in the service manual (or owner's manual if you've kept that in the glove box) on a particular model if you bring it to them and say "I need a 30k mile maintance"