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HP Programmer, Fuel mileage ????

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Old Jun 1, 2006 | 07:25 AM
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screw991le
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Default HP Programmer, Fuel mileage ????

I have a superchips tuner.

The tuner askes regular or premium fuel.

I always put Mobil 93.

So would setting the programmer to "regular" and still putting in 93, would that get me better gas mileage?

So on a long thousand mile trip, would the horsepower decreae and the mileage increase?
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Old Jun 1, 2006 | 09:17 AM
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Originally Posted by screw991le
I have a superchips tuner.

The tuner askes regular or premium fuel.

I always put Mobil 93.

So would setting the programmer to "regular" and still putting in 93, would that get me better gas mileage?

So on a long thousand mile trip, would the horsepower decreae and the mileage increase?
Your best bet is to contact Superchips and find out exactly what each setting actually changes in the stock program. From what I've heard from several local tuners, the handheld programmers only change timing. Therefore you'd get a little more timing advance on their "premium" tune and less timing advance from the low octane tune. Hope this helps...
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