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-   -   Flashpaq Superchips F5 doesn't make a difference??? (https://www.jeepforum.com/forum/f310/flashpaq-superchips-f5-doesnt-make-difference-4432797/)

dig4gold 05-13-2021 12:45 PM

Flashpaq Superchips F5 questions???
 
I've reprogramed my '04 WJ w/4.7HO a dozen or more times and I'm still getting lousy gas mileage in town. Maybe 200-225 miles per tank. I drive with an egg under my foot and rarely put my foot in it. Fun when I do though!! I've tried clearing it to stock before programming, and re-programming without returning it to stock and no difference. I've also drove it stock for a tank or so and no significant difference. Am I doing something wrong? Or should I just sell the damn thing?

JoMc67 05-13-2021 09:20 PM

Well, I have an 01' Durango w/4.7 (HO Manifold & Cams) also use the Stupidchips @87 Octane Summer Gas and getting around 275 per Tank in Town, 350 Highway, and 325 Highway/City Combined...Anyways, somfink like that :-)

Thinking of changing out the Fuel Filter and Regulator in hopes to get even more Mileage.

xcaliber81 05-13-2021 10:23 PM

I honestly don't keep track of my fuel mileage I probably should lol. I use the 87 tune I get regular 10 cents cheaper at the card lock I use. A few years ago going from prince george bc to MacKenzie id go there 200 km on a Monday use it back and forth to work for a week and Friday I went home 200 kms again all on 1 tank so roughly 430 ish kms? Usually my fuel light was on by the time I went back to the same card lock. I have a heavy foot too.

smokeyyank 05-14-2021 07:06 AM

Lifted or stock? Bigger tires or stock? What PSI your tires at? When's the last time you did a tune up (air filter, plugs, etc) ?

jserna 05-14-2021 09:02 AM

From my experience, the mileage setting sucks. It detunes the engine to much for where I live. It did work pretty well in Californina on the highway through the flat country.


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