I pull with a Mazda(Ford Ranger) 4Liter V-6 with 4WD. I have the 5speed manual, as a personal preference. Most people use the automatic as a convenience. I have been from coast to coast pulling the
Scamp 5th wheel. I've been over Red Mountain Pass in Colorado pulling Christi V's when I delivered hers. I've never been underpowered. I average 16-18 MPG pulling the 5er at 60MPH. No sway with a 5er at all. Hope this answers your question...Mike-B