enduring_soul

so i went in yesterday to get my spark plugs changed cuz i started noticing my engine seemed to be choking at 1500 to 2000 rpm. The guy changed them and told me that there is oil leaking into the sparkplugs, apprently i have to change the spark plug gaskets. As far as i know i never heard of gaskets for spark plugs but anywho i live in toronto so i went down to this store called autospot and asked them for a spark plug gasket kit they gave me the most puzzled look. They were like valve cover gasket ? so ya is there such a thing as spark plug gasket is that even what its called or was the mechanic refering to the coils? and how much is it gonna cost me ? another thing is that i am guessing this is the reason y i am getting bad gas mileage. i usually only get like 10 km out of 1 liter of gas.