By implementing a direct injection fuel system, the luxury auto manufacturer has increased the power and fuel economy of the new 3.5 - liter V - 6. (whylexus.com)
Other changes include lighter pistons; a newly designed, integrated exhaust manifold; and a new, high - pressure direct - injection fuel system for finer fuel atomization. (autonationdrive.com)
The direct - injection fuel system allows us some real opportunities in terms of optimizing cold start for both emissions and robustness. (greencarcongress.com)