How common is it for the valve stem seals to be a major source of oil burn? My coupe is buring (I'm absolutely positive it's NOT a leak) about 1qt/300mi. The ground under my car at work (assigned parking-same each day) will only have 2-4 tiny drops of oil, the rear underside, bumper, and backend of my coupe are dry and clean. While on my SD (I know it's leaking from the turbo return pipe and braided line) the rear bumper and trunk shows oil splatter. I've read the manual *.pdf's (05-270, 05-235, and 05-250) and it seems to be an easy job and the parts are less than $25 from Rusty. Any thoughts on this? TIA all,
-- Luther KB5QHU Alma, Ark '83 300SD (231,xxx kmi) '82 300CD (159,222 kmi) '82 300D (74,000 kmi) needs MAJOR work