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Valve/Carbon Cleaner for the 2.0T

DadJokes

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I've used seafoam with good success in the past. I've not seen any valves to know with the 2.0T but I can say at 35k pulling spark plugs was the worst I've ever seen. They were trashed and burnt up. Shockingly the manual called for plug change at 30k and I see why. Jeep was misfiring.

I believe they've changed it now to say 60k but after what I saw I'd change at 30 lol.
I just did mine at 66k. I’ve seen badly eroded plugs and mine were still very serviceable. Of course I swapped anyway. No changes to engine idle or mpg. I’ve mostly run premium. Sometimes mid grade.
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jonyothan

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this is nothing to worry about it. my other vehicle is a 2010 direct injection bmw with 160k kilometers. I pulled the intake manifold this year and the intake ports were clean, never been carbon blasted. I suspect this is only a thing when you run crappy fuel and never run your engine to high rpms. you gotta give it the "italian tune up" once in a while and red line every gear, that will fix your carbon issue
 

GATORB8

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this is nothing to worry about it. my other vehicle is a 2010 direct injection bmw with 160k kilometers. I pulled the intake manifold this year and the intake ports were clean, never been carbon blasted. I suspect this is only a thing when you run crappy fuel and never run your engine to high rpms. you gotta give it the "italian tune up" once in a while and red line every gear, that will fix your carbon issue
Wow, N54? My old 335is was completely caked at 60k, and bad enough it was impacting performance.
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