Horrible Fuel mileage update
Awhile back I posted a thread about horrible gas mileage. TV is a 2011 GMC Sierra 1500,5.7L, 3.42 gears, tow package (not HD). Trailer is Tracer 2640 RLS that weight is just under 6K. I mentioned...
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Slowing down helps more than anything. But you are unlikely to push it over 10 mpg unless you slow down to 40.
