Oil above the saprk [lug but below the spark plug boot
How many miles? It has nothing to do with the piston rings. It means that either the seals at the top of the spark plug holes under the valve cover or the seals at the bottom of the plug holes (where the rocker shaft/cam shaft supports mount to the block).are bad. The ones at the top are relatively easy to replace, a valve cover gasket kit should include the large cover seal and four o-rings. The lowers seals are a bit more involved and require the rocker shaft support to be removed. My 1990 Accord has this problem as well. I occasionally remove the plugs, clean the boots, plugs and the holes, then reinstall everything. If it reaches 300,000 miles, I may do it all when I change the timing belt.
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