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      05-18-2011, 11:45 AM   #10
mkoesel
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Quote:
Originally Posted by Ilma View Post
Funny no one seems to mention the negative long-term effects of direct injection engines

C A R B O N B U I L D U P on the intake valves.
Is this as big a problem on DI engines with forced induction as it is on naturally aspirated ones? It seems like the problems I have heard most about are with N/A engines. But I admit I haven't really researched it.
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