How many mpg does a chevy 2500 longbox 6.6 duramax diesel truck give you?

david

Active member
They have there pro and cons the duramax is gratly held back by the dpf. And cummins is only a strat 6 and a duramax is a v8 cummins is going to get and small. Amount better fuel milg but it I remove the dpf off the chevy fruck you have crazy pwr
 
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