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JasonG · 11-15-2010, 03:12 PM

Years back Caterpillar 500s got 5-6 MPG hauling a full load at 70MPH.
I hate to sound down, but fixing up a NA diesel is a waste of money.
For the box, why duct it? If you don't need the space the duct will use, just chop the top level with the cab.

11-15-2010, 03:12 PM	#21 (permalink)
JasonG Master EcoModder Join Date: May 2009 Location: Charlotte NC / York SC Posts: 728 05 DMax - '05 Chevrolet 2500HD 90 day: 18.48 mpg (US) Thanks: 120 Thanked 56 Times in 52 Posts	Years back Caterpillar 500s got 5-6 MPG hauling a full load at 70MPH. I hate to sound down, but fixing up a NA diesel is a waste of money. For the box, why duct it? If you don't need the space the duct will use, just chop the top level with the cab. __________________ I can't understand why my MPG's are so low..........