Quote:
Originally Posted by winmutt
I've never heard of any real issues being solved by replacing the valve stem seals.
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With my SD, I used to have a problem with big smoke plumes (burning oil) out of the tail pipe when pulling away from a stop light or in stop and go traffic. I'm sure I got MF'ed many a time by the unfortunate drivers behind me. The old seals were in pretty bad shape, very brittle, and no doubt not doing much 'sealing'. Well, after replacing the valve stem seals that issue went away. I also noted a significant reduction in oil use between changes. Been 20k miles or so since the repair and I'm still in good shape.