Just bought an 07 Prius 10/20/06. Have 1500 miles on it so far. Never have gotten more than 34 mpg miles to the tank. Fuel tank will only take 8.5 gallons when empty. Tank capacity 11.9 gals. Dealer says all is up to specifications. Mileage rate is UNACCEPTABLE for a careful driver. Dealer talks about breaking in the engine for 15,000 miles; also UNACCEPTABLE.

Any ideas or similar experiences????? Thanks for your help