Best thing I ever did to mine Seadog! 28/32 per manuel is a joke. I had 4500 miles on mine before I noticed a thread here about running more air in tires but I still could have got more than 11,500 out of my back and my front still looks good at 15,500 even though I am considering putting a new one on by summer.220 lbs here. Changed the tire pressure to 40 front and 40 back. Mild wind. I think I was just lucky I got that good of mpg's. I do downshift a lot and try to work her thru the gears properly. Then again I drive truck (10 speed) all day so shifting and working the engine to get the best performance isn't new to me.