Update:
This morning I made covers for the back wheels:
with rear wheel skirts to:
I did some ABA testing today..... results show a
1.48 MPG gain!
A= 45.15
B=46.54
A2 = 44.98
I had not expected this much gain for a $15 mod!
I have all the data but need to make a nice file (and graphs) yet, I will post that up when I have it done!