If your engine is really GDI there is no need to clean the intake valves since the only thing that should be flowing through the intake ports is clean filtered air. Unless of course the engine is worn to the point that oil is entering the intake path in significant amount past the valve guides perhaps.
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If your engine is really GDI there is no need to clean the intake valves since the only thing that should be flowing through the intake ports is clean filtered air. Unless of course the engine is worn to the point that oil is entering the intake path in significant amounts past the valve guides perhaps.
If your engine is really GDI there is no need to clean the intake valves since the only thing that should be flowing through the intake ports is clean filtered air.
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If your engine is really GDI there is no need to clean the intake valves since the only thing that should be flowing through the intake ports is clean filtered air. Unless of course the engine is worn to the point that oil is entering the intake path in significant amount past the valve guides perhaps.
If your engine is really GDI there is no need to clean the intake valves since the only thing that should be flowing through the intake ports is clean filtered air.