Oil residue on spark plug tip and threads
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This was posted in response to a similiar question
https://ls1tech.com/forums/showthrea...oil+spark+plug
Nine Ball-"Most likely it is coming from the intake manifold. These LS1s are notorious for sucking in oil from the poorly designed PCV system. The oil ends up coating the inside of our intake manifolds and dripping down into the cylinders. The rearmost cylinders seem to collect the most oil.
I would highly recommend that all LS1 owners install an PCV oil catch-can to reduce the oil consumption inside the intake. Our sponsors AMW makes some nice ones, see here:
http://www.accmachtech.com/pcvcatchcans.htm"
https://ls1tech.com/forums/showthrea...oil+spark+plug
Nine Ball-"Most likely it is coming from the intake manifold. These LS1s are notorious for sucking in oil from the poorly designed PCV system. The oil ends up coating the inside of our intake manifolds and dripping down into the cylinders. The rearmost cylinders seem to collect the most oil.
I would highly recommend that all LS1 owners install an PCV oil catch-can to reduce the oil consumption inside the intake. Our sponsors AMW makes some nice ones, see here:
http://www.accmachtech.com/pcvcatchcans.htm"