Bill Ellis
Well-Known Member
Just curious, what level of mpg increase is likely with the X-Cal II economy tune using 87 octane in a stock Trac? Any data from users out there?
X-Cal II MPG Tune
- Thread starter Bill Ellis
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Jeff Bater
Active Member
I am also VERY interested in this. If I get decide to take delivery of the '07 I have on order, I would order this IMMEDIATELY if it helps MPG!
Thanks.
Thanks.
We documented 28 mpg doing "60 mph" across part of Arizona last Sept. That's using the XCal2 with the mpg tune, 235/70/16 tires, and KEEPING the speed down.
Jeff Bater
Active Member
Do you have an '07 and if you do, V6 or V8?
Thanks.
Thanks.
Larry Phillips
Well-Known Member
Rodger and Bill both have Gen 1 STs, as do I. My mom was able to squeeze about 28 mpg out of Jade with mostly highway commutes, especially driving back from Wichita to Mexico Missouri, staying off the cruise control, and using the 87 octane performance tune driving 60-65 on average. She drives my truck like it's really delicate. When I drive, I can usually squeak about 20 to 22 out of her on the 87 perf tune. I haven't tried the 91 perf tune for long distances yet. If gas prices stay the way they are, I'll probably drive on 87 to Louisville.
I have a mileage tune, but I have hardly used it. It's for highway use only. It changes the shiftpoints, and tries to keep the cruise control from downshifting so much. On some hills, and this was in Kansas and Missouri, the cruise control would sometimes downshift from OD to 3rd, and the RPMs would shoot up and the ST would try to rocket up the hill and attempt to either hold speed or get back up to speed as soon as possible. As you would think, it eats gas mileage. Jade drives herself harder than I do...
I have a mileage tune, but I have hardly used it. It's for highway use only. It changes the shiftpoints, and tries to keep the cruise control from downshifting so much. On some hills, and this was in Kansas and Missouri, the cruise control would sometimes downshift from OD to 3rd, and the RPMs would shoot up and the ST would try to rocket up the hill and attempt to either hold speed or get back up to speed as soon as possible. As you would think, it eats gas mileage. Jade drives herself harder than I do...
johnny ballance
Member
Where can i get one of these x-cals from? How much are they
TRACket Paul
Well-Known Member
jb9281, Site Sponsor - Wayne Foy, I think currently about $379. Three different tunes plus your original stock program. 
Wayne Foy
Active Member
jb9281, contact me at my website as posted by Paul.
Bill-E, with my wife driving the ST daily over 120 miles round trip (combo street/highway) and with her lead footed occasional romps, we average 450 miles per tank, with the average fill up being 20-21 gals. Thats around 23 mpg consistently.
Bill-E, with my wife driving the ST daily over 120 miles round trip (combo street/highway) and with her lead footed occasional romps, we average 450 miles per tank, with the average fill up being 20-21 gals. Thats around 23 mpg consistently.
Bill Ellis
Well-Known Member
Looks like gas price is getting high enough for Xcal II to pay for itself. At $3.00/gal, 18K miles per year, going from 18 mpg to 21 mpg would be a $429 yearly savings in fuel cost.
