I have a small leak or a mess from a small spill on top of the engine that seems to be slowly growing. It`s around the coil packs/head cover on a Ford Focus. I don`t have a hose or really want to use one there. I plan to brush and wipe with a little spray bottle. It`s a tight area with little room to get in there. What do you suggest? I see Wolfgang has a new engine cleaner that wipes on/off. No reviews as of yet.