i think there is a lot of people not understanding how these new systems are going to work with EGR. The over heating problem is going to get bigger a lot bigger. You can burn these gases under the hood a t temp's up to 700 c and not have over heating problems. Like i have pointed out manufactures don't want to admit they can't come up with a solution to this problem. They are going to have to redesign trucks from 6,000kg and over fro the European and North American markets. Will they want to spend this money probably not so they will just use the old design and pretend there is no problem.