Third - generation common
rail diesels reach 45,000 psi or 3,000 bar, using piezoelectric injectors similar to what Epson uses in its inkjet printers.
Also planned, but not likely to
reach the U.S. market until summer 2013, is the Q5 3.0 TDI running a turbocharged 3.0 - liter V6 common -
rail diesel engine with 245 hp and solid 427 lb - ft of torque.