Hycop,
20 Gallons per hour is not normal. Get it checked over and learn how to lean it. You should easily get it down to 16 - less if you try hard.
rick1128,
It is not just the turbines that can start grass fires. The warning equally applies to the piston models that exhaust from the bottom. (280, F28A and Robinsons)
Long dry grass has destroyed quite a few aircraft over the years.