Seems there is a scarcity of diesel mechanics @ some dealerships...some don't have any ! Got me to thinking about Isuzu who builds the Duramax; any of you ever taken your Duramax to an Isuzu truck dealer for maintenance ? Seems to me if you have an Isuzu truck dealer within reasonable distance or locally it would be a good place to go. Have any of you checked it out ot gone to an Isuzu dealer ?