A 2024 Toyota Tundra owner recorded an average of 7.5 MPG while towing an 18-foot Winnebagoⓘ travel trailer weighing about 5,500 pounds at speeds above 70 MPH on a 5,000-mile round trip from Florida to Montana and Wyoming. The EPA highway rating for the vehicle is 20 MPG unladen, representing a 62.5% drop in efficiency.