the 14and up hemis using iridium spark plugs now should go 160k which is good seeing the pluga are $22 each. for whoever is asking
so far the ecodiesel seems a winner quiet efficient time well tell with emissions problems, injectors and pumps, really the only choice for 1/2 tons at the moment, like to see the titan with the 5L cummins it it should be a stump puller as well.