In TDR Issue 52, the editor of the TDR took the opportunity to eat crow. To the point, we will quote from Issue 52, "In several off-the-record discussions with service support staff, the discussion has shifted to fuel conditioners as a maintenance practice for the '98. 5 - '02 VP44 fuel pump and the '03 to current HPCR injectors. The product recommendations: Cummins Diesel Injector Cleaner/Valvoline SynPower (3164982 - one quart), Racor Diesel Fuel Additive (ADT 1116 - pint), Stanadyne Junior (31417 - pint), Mopar (05191800AA - pint), Wynns (makes the Mopar product). Finally, a strong word of caution: avoid any fuel treatment product that has alcohol or acetone (typically used as a water emulsifier) as an ingredient. The alcohol and acetone cause rapid wear to internal fuel pump and injector parts. "