I wished I'd kept close track of the fuel I've used thus far, but I do have an idea. Thinking I been doing somewhere between 15 and 18 MPG. With the 7 gallon tank, just thinking I should be ok for at least 90 miles anyway.Looking at buying a 2011 S or 4 model. Just wondering what kind of range you all are seeing. I will be riding hardpack and trails, no sand. Thanks.