In my experience towing 18'-19' boats, a truck that gets 17-19 mpg unloaded will get 10-12 mpg with the trailer. That's 10 mpg (or less) at 70+ mph to 12 at 60 mph.
Your results don't sound that different.
Don't strip the brakes off that trailer until you check state laws re: trailer brakes. Your trailer may be heavy enough to require brakes. IIRC, GM wants to see brakes on any trailer weighing more than 1500 lbs.
Last edited by yarcraft91; 02-21-2012 at 08:07 AM.
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