In my 2011, I have consistently noticed it hitting the Magical "Fuel Low" warning message right around 40 miles. Maybe the set-up was different in different model years? I managed to maintain about 20/21MPG (according to the DIC), so that's NOT 4 gallons. Also typically when I fill up, she takes around 16 gallons or so. Just my 2 cents.
2011 2SS/RS L99 RJT VIN# 116938 Del: 27AUG2010 "Veronica" is a wet dream on wheels!
Former Ride: 2010 1LT RJT 15AUG2009 - 27AUG2010 "Victoria" was one fine lady! CamaroSouth - Columbia Chapter Member