My valve cover gasket leaks oil all over spark plug 4 too. Recently I replaced the gasket and gooped tons of gasket sealer all over. Hopefull it won't leak this time. It is a common problem with these engines.

As for plugs, I have never had good luck with ANY high-end plugs in my sportage. I have tried bosch platinum, +4, and others and had problems like Axey.

Now days I usually use Denso plugs that have the copper contacts (I think?) and I replace them more often. Runs smooth as a baby's butt... Hey I figure use ***** plugs in a ***** engine smile

2002 Sportage 4dr 4x4 soon to undergo an Extreme Makeover!