The first tank of gas goes through "The King"

I bought a new used 2006 Road King a few weeks ago. I have now dodged the weather enough days in the past 2 weeks to ride it 300 full miles. It's raining again today in case anyone is wondering. So back to the first tank of gas in the 2006 Harley Davidson Road King. I filled it up on Wednesday morning 4-23-2008 when it was cool, and like I said Wednesday. The reason I mention this is I read these tips on any one of the 100 how to save gas articles floating around right now. When it's cold out you get more gas than when it is warm and mid week gas is cheaper as gas prices tend to rise in cost over the weekend. Well anyway the gas was $3.29 a gallon in Draper Utah, and I needed 4.3 gallons to top of "The King". The trip odometer read 161 miles and the fuel gauge was just entering the red marks near E. These miles were a combination of one long freeway trip of 60 miles and the rest around town stop and go and my 3 mile freeway sprint down the on ramp each morning. Do the math 161/4.3 = 37.44 MPGs. This is not too bad, I was hoping or expecting it to be about 45-50 miles per gallon but this was the first tank and my first 300 miles to really test out the bike so I was riding it hard most of the time. When you have a new bike you have to goose it at most all stops signs. Well more to come on this great gas debate.