Quote:
Originally Posted by JHOOPS2
I have to believe that with so many new engines going the DI route that most service centers will soon have a quick and easier method of cleaning the valves/intake or at least doing preventative treatments during oil changes to keep the filth and muck down to a minimum.
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Toyota seems to be on the ball since the Lexus engines have both direct AND port injection. The port injection should keep the valves clean.