At least once in your car's lifetime, give it what it deserves...
Don't be cheap, use good oil & filters.
Try not get conned by the service people who will try to add all sorts of treatment to your engine/fuel system.(This will keep your cost to a manageable amount)
Focus on the essential maintenance rather than wasting time & money on pointless(and probably foolish) things like "pressure washing the engine"
(like most of the "Allion/Premio" crowd) !