First,
If you are having fuel in the drip tray it could of course be the float bowl gasket that needs changing, but today, on my own plane never the less, I found the nut to the fuel line into the carb loose and dripping fuel when the engine was running. Before you yank off the fuel float bowl put a wrench on this nut and make sure it is tight.


Second tip,
When someone does maint on you plane make sure they lube the flap guide rod in the baggage compartment. This is the shinny metal rod that has the small rectangle block on it that trips the limit switch for the flaps. This rod moves up and down when you change flap settings. These are getting dry which causes excessive drag on the flap motor which causes the flap display to flash or misbehave in other ways.
Lube this rod with some type of lubricant spray or something.

Now let's talk silicone spray or a spray lubricant.
Many silicone sprays have distillates or solvents in them. These solvents can cause the bearings in the flap connection and aileron connections to come loose and in general may not be good for the places you over spray. I use a spray lubricant to lube most bellcranks especially in hard to reach places. Look for a silicone spray without distillates or solvents. They are out there, just be picky. Some are also a little more viscous which helps make them stay in place and makes them more durable under operational conditions.

I use a product called INox - Mx3. It is a food grade spray lube that will not harm our parts. It sticks very well and works well under operations.

Here is a link to look. Go to products and scroll down to Inox - Mx3
I buy it at Ace Hardware. Like they advertise, "Ace is the place with the helpful hardware man".

http://www.inox-mx3.com/inox.htm

No I don't own stock in the company, but have tried other spray lubes and this one seems to fit the bill in several areas.

You may have another good product and if so stick with it, just try and stay away from the solvents, distillates and hydrocarbons if possible.