Then wouldn't DP work better if you just let it idle during the purge? I was told to rev it and hold 3-4K RPM's during a purge. Wouldn't it seem, based on the above that the more time DP spends in the CC the better the cleaning action? Or would the additional heat of higher RPM's change that?

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K