How fast do you drive with camper on? .

There are trips I take only for the purpose of getting the horse from one competition to another such as San Francisco Bay are to Lexington Kentucky. Thats 2500 miles. The name of the game is to minimize the hours that the horse spends traveling so that we can maximize the total number of rest days before the competition to let the horse recover and get used to the new surroundings. Thats a 4 day drive followed by 5 recovery days and four days of competition then 4 days back home. After that the horse gets at least a week of nothing but hand walking. So yeah I am doing 75-80 across Nevada, Utah, Wyoming and Nebraska...Fuel costs are not important. Not letting the fuel gauge drop below 1/4 tank is.