Forum Discussion
jevanb
Jun 24, 2012Explorer
my 04 gasser hd6.0 sounded as if it was going to blow trying to maintain 70 up a large bridge where i live with the tt. the 6.6 can make it almost all the way up in 6th gear both get around the same milage towing on the flats but get in the hills and empty the diesel uses less fuel and feels safer
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