ok so heres my problem i have a 2.4 the far plug on the passengers side fills up with oil over time. its not a major leak but i was wondering if the oil laying in with the plug could cause problems?

You don't want if "filling up" high enough to reach the rubber boot over the plug. I've seen several of these engines leak a little oil in this area "over time". In the case of my car, "over time" was ten years and over 100k miles. And, the amount was very little, easily removed before I changed the plugs. Since then, I take the coil cover off every year or so for maintenance and to take a look.

thanks mark. it dosent leak that much and its only in that far plug the rest are fine. thanks for the info