hit reserve for the first time at 118 or so, so I concur with the above.
Also, my first tank of gas took me 90miles, I stopped to get fuel and only put in 1.7gal before it was full.... next tank was exactly 3.4 to 120 miles... crazy
+1 for varying below 600... wouldn't say below 5500 rpms, though that may only be because i've been above it already....