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So does anyone put any thing in there fuel. I was at Ford dealer and they were pushing there super fix all stuff for the 6.0 L. I have put lucas fuel additive in but did not really notice anything different. So before I head out for the summer I thought I would see what you all think.

Jaime

Every now and then I put some Marvel Mystery Oil in my F250 super duty, I have not noticed much of an improvement but I have heard that it helps keep the injectors clean. One other thing is that it does not blow smoke when I put the pedel down in 6th gear when it has the MMO in it.

DW

1948 Mack Pumper
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