| Stanadyne/Lucas
There are several other additives to look at besides Power Service. Stanadyne is the only additive supplier who also manufactures fuel injection equipment. It was suggested to me by a friend who owns an injection shop. I run Stanadyne Performance Formula in both of my vehicles and have never had a clatter problem. Another additive which will help the clatter is Lucas Upper Cylinder Lubricant. Ed B
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2006 E320 CDI
2007 Dodge/Cummins Truck (Hers)
2005 Dodge/Cummins Truck (His)
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