After Caterpillar stopped building on-highway engines in 2009, the main fight is between Detroit and Cummins when it comes to the best commercial diesel engines on the market currently.
var digg_url = 'https://digg.com/autos/Ford_announces_EcoBoost_engines_to_give_20_mileage_boost'; Ford is using the 2008 Detroit Auto Show to kick off the transition ...