Ford Class C with 6 speed transmission
I see that the newer Fords with a V 10 have a six speed auto transmission. When did they replace the old 5 speed (I had a '99 with only a 4 speed) Would one expect to get better gas mileage with the n...
Forum Discussion
Gjac wrote:
So you just change to a higher aspect ratio tire, sounds like a cheap solution to get greater mpg. I guess if you go too high on the same size rim the MH might have more lean when taking a corner. Do any of the small C's come with larger rim size say 17 or 18 in? I know a lot of the TC guys put larger rim tires in the rear mostly to increase their payload.
I might add that any side-sway (lean) issues from wheels with small(er) rims - relative to tire sidwall height - can be minimized by using higher tire pressures. I run 80 lbs. of pressure in the larger-diameter rear tires of our small Class C ... that does not require 80 lbs. for weight carrying reasons. This provides stiff tires that don't move much - either leaning back & forth, or compressing up & down.
As a good example, note the large big-rig tires (sometimes supporting an 80,000 lb. or more total rig load) that have large tire sidewall heights relative to their rims. These trucks are able to safely do this without tire-side-sway issues merely because they're running very high tire pressues.
