don't go oil monkeys like jiffy lube, etc.
those oil only business are notorious in cheating customers. you can find many cases in youtube, even reports from major networks.
rather, go to those side shop of large retail stores, such as sears, walmart, etc. the corporations' business is established on customer trusts, they definitely won't risk their reputation to save a few bucks. If you bring your own oil and filter to sears (this is important so you know you are using the quality oil and filter for your best interest. oil and filter are cheap, engine is not), i am certain they will do a good job for you. most times, you will find sears' promotion they only charge $10 for labor.