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Given the poor quality of American diesel fuel and all the emissions equipment that comes on modern diesels, a lot of people talk about and are interested in fuel additives. While fuel additives are generally thought of as snake oil and unnecessary for gas engines, I think most people now agree...

Here are some before and after pics of the EGR diffuser tube when it was taken to the shop for a cleaning. 32k miles, mixed highway/city driving (average between 26-27 MPGs per tank), Hot Shots EDT every fill up, and Hot Shots Diesel Extreme every 6k miles. When I did research into buying one...