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Ignition wires that increase MPG?

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Old 11-02-2011, 03:42 PM
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Question Ignition wires that increase MPG?

Hey everyone,

I came across these wires on JC Whitney that claim to increase mileage by 15%. I am only curious if anybody has had any experience with these or if they would be a complete waste of money. I am very skeptical and didn't think the wires would be able to have this great an effect. Any thoughts?

http://www.jcwhitney.com/mpg/plus-ga...d=d1163y1996j1
Old 11-02-2011, 06:38 PM
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What a complete load of crap.

There is no possible way that plug wires can give you a 15% bump.

Save your money.

Buy some quality wires (I use Belden usually) for about $30.

And stay away from the chips that "guarantee" similar gains. There is no free lunch people.............

Keep your vehicle tuned up, fresh fluids and expect 16-21 mpg on MOST Jeep Cherokees with a 4.0, give or take a bit either way.

Last edited by tjwalker; 11-02-2011 at 06:44 PM.
Old 11-02-2011, 06:45 PM
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Any good tuneup, will produce MPG gains of this much. Do the math, 10% of 10 MPG's is only 1! So you now get 11 MPGs.

With unknown plugs, wires and cap Im getting almost 18 MPGs from my 5.2lt
Ron
Old 11-02-2011, 07:31 PM
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Watch out for those devices that improve mileage.

A guy bought several from JC Whitney - wires, plugs, air swirlers, magnets etc.
Now he has a real problem - it gets too good a mileage - every 100 miles he has to stop and drain the fuel tank! He's always trying to find empty tanks or cans to put it in.
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