Well, I just added a whole bottle of PS Diesel Kleen, a 20oz. bottle of Chevron Techron to a full tank of truck stop diesel (hoping to get a "fresh" supply). I then got on the interstate and ran it up to 75 MPH in third (RPM's around 4500-4800) and kept it there for about 7-10 minutes. When I finally got off at the exit and stopped at the light, the vibration was reduced significantly. It's starting to feel the same whether the car is in Neutral or Drive at a stopped position. Knock on wood...we may have it licked.

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Deuce
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'96 E300D (RIP Riggo - 12/16/2010) 198K
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