Kreuzfahrt said:If I fill my water full when traveling will the added weight on my 2012 Thor 28PD improve the handling.
Gary RV Roamer said:There may be some small effect, depending on where the tank is located and how much it holds. 100 gals of water weighs about 840 lbs, so the additional weight is maybe 4-5% of your gross. However, in a motorhome it is usually located low and between the axles, where the weight has little impact on handling.
What sort of "handling" are you concerned about? Body roll? Sway? Directional stability (steering)? Ride comfort? There are different things that affect each.a
There is an extensive article in the Forum Library on Motorhome Handling.