Changed my spark plugs on my 1.8t bex today, all went well. My question is.... from the pic is this a healthy spark plug i removed? And also how much oil is acceptable where the SP sits? Ie, looking down in to the apperture before removing the plug there was a small collection of oil. Not loads just a few drops sat on a machined shoulder. Bosch super 4's went back in, done my air filter too. Car got some love today!