We tow with your adverage everyday Ford E-350 super duty Diesel. Pulls strong with plenty of room for our gear and two extra people. Never had an issue pulling our 6000# +/- trailer.
2002 Jeep Grand Cherokee Limited, 4.7 Liter V-8, 3.73 rear end, trailer towing pkg, flowmaster exhaust. Averages 12-14 MPG pulling 2 place open trailer. Little tight on room for more than two people though.