The all-aluminum engine has the same package size as the smaller displacement Duratec 30, but produces an estimated 250 hp @ 6,250 rpm and 240 lb-ft @ 4,500 rpm on regular gas. It has a 10.3:1 compression ratio, rev limit of 6,700 rpm, and produces 71.5 hp/liter.
It was the first time retail prices of regular gas have risen on a weekly basis since October 2000, the center said in the weekly survey on the retailing of petroleum products.