3 dirty intake runners?

Originally Posted by phunk The one and the only thing that travels through the lower intake manifold runners aside from intake air, is PCV system re-circulation. Its just PCV oil

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3 dirty intake runners?

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08-09-2015, 10:39 PM

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synolimit

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Quote:

Originally Posted by phunk

The one and the only thing that travels through the lower intake manifold runners aside from intake air, is PCV system re-circulation.

Its just PCV oil not being evenly distributed. While it leaves a film on the runners, its effects to engine performance are negligible.

Still gross haha. Here's 1000 miles...

While a new engine might not see issues with power, I've seen some pretty disgusting looking motors over time as this stuff builds and builds on the mani, heads, valves, pistons etc. I want to keep it clean but that's just me.

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