I know this doesn't sound like the most cost effective place, but how about a Honda dealership? They charge more than a ma and pa garage (~$29), but I've never had a problem and they always use the correct viscosity, plus they check all the other fluids.

If you go, make it clear that you just want an oil change . . . not a $100 "minor service" or "checkup" or whatever crap they make up to charge you more.