5 Star Tuner FAQ – My results

I'm no math giant but isn't that 72 miles/ 13 mpg = 5.5 gallons x ~ $3.70 = ~ $20.50/tank? That works out to about $60/month for me, or more since the cost of Regular around here is right around $4.00/gal.

Feel free to set me straight. Wife does it all day long.

I'm about to order the X3 tuner but I have one more question, if I run into a problem in which I need to take it into the dealer for service, am I able to revert back to stock settings in addition to the 3 custom tunes?

are the results simular for the 5.4l raptors?

accely said:

I'm about to order the X3 tuner but I have one more question, if I run into a problem in which I need to take it into the dealer for service, am I able to revert back to stock settings in addition to the 3 custom tunes?

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Yep!

accely said:

I'm about to order the X3 tuner but I have one more question, if I run into a problem in which I need to take it into the dealer for service, am I able to revert back to stock settings in addition to the 3 custom tunes?

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It is not a easy as just switching out the tune.. My suggestion is to revert back to stock then complete at least 3 drive cycles.

Drive cycle:
The recommended OBD II drive cycle begins with a cold start (with coolant temperature below 122 degrees F and the coolant and air temperature sensors within 11 degrees of one another).

NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run.

- As soon as the engine starts, idle the engine in D for two and a half minutes with the A/C and front and rear window defrost on.

OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.

- Turn the A/C and front/rear defrost off, and accelerate to 55 mph at half throttle.

OBDII checks for ignition misfire, fuel trim and canister purge.

- Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

- Decelerate (coast down) to 20 mph without braking.

OBDII checks EGR and purge functions.

- Accelerate back to 55 to 60 mph at ¾ throttle.

OBDII checks misfire, fuel trim and purge again.

- Hold at a steady speed of 55 to 60 mph for five minutes.

OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.

- Decelerate (coast down) to a stop without braking.

OBDII makes a final check of EGR and canister purge.

- Test complete

-Greg

91 octane performance tune gets me 16.8 at 73mph. in the 13's around town. Just too much fun standing on it to do any better. I noticed a 2mpg gain with the K&N CAI around town before the tune. It uses a little more gas with the tune but it is much more responsive and fun to drive. Still running the stock exhaust with a QTP cutout. I would guess headers and dual exhaust would help the performance as well.

Alright! Enough is enough, I'm ordering one right now!

Fred said:

Ok, so obviously, we are not changing the stock tune for the mpg gains. 2mpg gains on a 36gl tank. 72 miles per fill up at best. That is a car fart.

Screw it, I will drive the hell out of it and take my 12mpgs and love it.

The 5star tune is great for me. I run the 93 performance and love it.

I also love my Airaid Intake and Magnaflow catback.

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Im with you fred...2mpg WHATEVER!!!! If i was so concerned about gas i would be driving a prius!

mouldman1 said:

Im with you fred...2mpg WHATEVER!!!! If i was so concerned about gas i would be driving a prius!

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Hey Bud,

How's your black beast doing?

Any mod updates for me


Fred

c-ne-elk said:

Rated SVT, no cat-back.

Wheela, I live at +4,000 ft. elevation and all this driving was at elevations at or above 4,000 ft. I don't know why but will all my vehicles I have always had better gas milage at higher elevations than when I drive at lower elevations. When I go up into the mountains at 8,000 to 9,000 ft. I am always amazed that my mgp will sometimes go up 2 mpg.

All of these gas milage calculations are from multiple tanks of fuel and calculated results, I did not use the "instant mpg" from the display as that is never quite correct. I had one tank this summer up in Wyoming where I was on small roads which had a speed limit of 55 and the roads were very flat. I drove for quite a few days on these roads doing some fishing driving between 55 and 60 mph. That ONE tank, I got 19.9 mpg, I threw those results out of the equasion as it was such different driving conditions.

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That is so true! Having lived most of my life at elevation I've found the exact same thing whether it be a truck or a car. I once got 73 mpg on a tank of gas with my old 91 Ford Festiva around Wyoming. Haha!