Sorry, I did no take it personally as I knew you did not intend it that way. You are sharing your opinion and hearsay. I speak only from a point of experience and will seldom venture out on a limb about something techinical if I do not know first hand or from a technical document.

As I stated, I've done this for a very long time with no detrimental results. I do it with my current $65,000 MB. Help me understand WHY engine flush is offered for sale in autoparts stores or even sold through Jiffy Lube type places?