I’d say go a step further an look at all their tier IV engines (the ones that are currently in everything from genrators to locomotives to construct equipment). If they aren’t in compliance outside of testing that could open them up to lawsuits from customers and competitors on top of the fines.
They should also look at the 5.0 liter Cummins that Nissan used in their Titan trucks.
I’d say go a step further an look at all their tier IV engines (the ones that are currently in everything from genrators to locomotives to construct equipment). If they aren’t in compliance outside of testing that could open them up to lawsuits from customers and competitors on top of the fines.