I drive my 2005 Ram 2500 quadcab 4x4 diesel daily with no issues. It averages 18 MPG using it for both city and highway driving. I have gone 400 miles on this tank of fuel,and the guage reads above a quarter tank full. It tows effortlessly,like there is nothing hooked to it,when there is! I will never buy another gas powered truck to tow with.