Quote:
Originally Posted by rfuerst911sc
Hmmm not sure it's worth it for a teaspoon or two of oil every 3k to 5k oil changes . But there must be some value keeping the oil out of the intake .
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Oil will reduce the octane rating of the fuel, but minute amounts make minute changes.
On my carbed setup I have a catch can because the intake pulls a vacuum on the crank case for better ring seal. At least that is what the builder told me. Also keeps the system closed since tracks don't allow open breathers on the valve covers.
For a modern engine it probably provides no benefit unless the rings are bad.