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hey guys i was wondering if i should use a fuel additive and if so what is the best and exactly what do they do. And also should i install a second fuel filter if so where can i get one
 

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Discussion Starter #2
come on guys help me out here i heard it can help with alot
 

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I have used Primrose in my PSD and now use it in my Duramax. It is the best. You will also notice a difference in engine smoothness.


mike
 

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I use Stanadyne with every fill up in the winter. Not as regular in the summer but it is a very good product. I know alot of guys use it with good results! I bought mine through DIS in texas. Hope this helps!



Cheers, Justin
 
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