Chips - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 01-29-2008, 11:52 AM Thread Starter
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I heard that if I put a chip in my truck, I will gain better fuel mileage but will lose towing ability. Is this true?
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post #2 of 4 (permalink) Old 01-29-2008, 01:03 PM
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There are some really great posts over in the 6.4 tuner Forum that have to do with a number of different products. All kinds of towing, economy programs, and other what nots.
Good Luck

[B]2008 F-450 Lariat 4x4 6.4L PSD LWB DRW 4:88's
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post #3 of 4 (permalink) Old 01-29-2008, 02:08 PM
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As with any programmer, when you tune a truck you have to change something to gain something. For example you can raise cylinder pressure to gain more power, but doing this will put more stress on the motor so there for it is not recommended to tow over a specified weight. This is more true on the high HP gain tunes, there are tunes(tow) that will add a little bit of power( about 40-60 hp) and still be able to tow the max GVWR from the factory.

I use my high HP tune for everyday driving, it yields me the best mpg as long as i stay out of it, and tow with it too. Last week I hauled our ranch truck ( about 8500 lbs truck and trailer) on my high HP tune and did just fine, but I do have the guages so I can keep my eyes on whats going on with the motor, thats the most important part.

So to say that adding a chip will make you lose your towing capacity it not 100% accurate.

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post #4 of 4 (permalink) Old 01-29-2008, 07:24 PM
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Please before you modify your '08 with any change to the drive train call your dealer. I am 99% sure he will tell you that you will be in for a long arbitration with their lawyers should any issue arise that they can remotely blame your chip.
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