That is pretty good when towing. I get that regularly when not hauling a thing and a 50/50 mix of highway and city. Also, my truck is bone stock. I will be getting an SCT tuner and a 4" exhaust and hopefully drastically improve those numbers. I hear that an average of 18-20 mpg is expected after those two mods alone. Although an EGR delete and studs are a great preventative measure, they are just that - a preventative measure. I have not heard of improving fuel economy by doing them.
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