This is a very common savage pet peev
hehe, welcome to the club
I've had this problem for over 3 years, no big deal,
just keep track of your oil level and keep the area
clean so the engine cools well, I personally use a
spray bottle with diesel fuel, a grill brush and a cottony
rag 2 times a month, problem solved.
I've been meaning to fix it for a while now, even bought
all the parts i'll need allready, but the thing is that you have to
tear apart 1/2 the engine to replace a stupid $3 rubber plug