Hi. Been going locally in a Ci 141 2.8JTD to get used to her and see what I need to do to her. Been great only had to fir a rear calliper and that it. I'm curiouse aboutthe top gear as I have not driven a MH before. She speeds up fast enough 1-4. 5 speeds up slow on the level and holds it own on a slight hill. But it is a slow acceleration in 5th and any extended hill and I need to change down to 4th. Just checking is this the norm to have very little power in 5th? I should point out I drive a Jeep Commander that shifts in top gear but is no where near the weight.