Metra has started to receive the ex-west coast F59PHIs from Progress Rail. They're being temp repainted:
https://metrarail.com/about-metra/ne...t-home-chicago
Quote:
In addition to increased reliability, the F59s will reduce pollution and achieve fuel savings of about 10 percent to 25 percent over Metra’s older engines. Riders could see them on the Milwaukee District North, Milwaukee District West, North Central Service and Heritage Corridor lines.
“The goal is to get the first few units in service by the end of the year,” Cronin said. “The biggest benefits will be increased reliability and a reduction in fuel consumption. Eventually, we will be able to retire some of the older units, but we will increase the operating spare ratio in the meantime.”
|
These should be at least Tier 2 or Tier 2+ so a considerable emissions improvement from unrebuilt F40s.
Their page also notes the locomotive RFP is still out...from January.