Has anyone tried Mileage XS SAVE from SuperChips?
#11
It finally works for me but I'm having a few issues. Just a quick gander at the overhead on my trip home I can see theres going to be a difference, but how much I'm not quite sure yet. Need to check it out after a tank. The issues I have are, some really hard jerkiness when you let off the accelerator and let the truck coast to a stop. Almost like its gearing down as you would driving a standard. Also from a stop, going up through the gears, it will shift into a higher gear (or perhaps a torque lock-up) then back down, then back up then down then up. Really weird. From the posts on various forums who say they got it to work, looks like I'm the only one with these issues. I might just go reprogram the truck to see what happens.
#12
Join Date: Jul 2007
Location: South Georgia/East Florida
Posts: 24,686
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They posted on the Flashpaq forum that the XMS Mileage tune is out and working on ALL Hemi trucks. I'm gonna try to d/l it tomorrow and try it for the hell of it. I have a daily driver and use the performance tune exlusively, but will try it just to see if it does as good as they are claiming.
#13
It finally works for me but I'm having a few issues. Just a quick gander at the overhead on my trip home I can see theres going to be a difference, but how much I'm not quite sure yet. Need to check it out after a tank. The issues I have are, some really hard jerkiness when you let off the accelerator and let the truck coast to a stop. Almost like its gearing down as you would driving a standard. Also from a stop, going up through the gears, it will shift into a higher gear (or perhaps a torque lock-up) then back down, then back up then down then up. Really weird. From the posts on various forums who say they got it to work, looks like I'm the only one with these issues. I might just go reprogram the truck to see what happens.
it might be a good idea to disconnect the battery for couple of hours and have the PCM relearn everything....
#14
It finally works for me but I'm having a few issues. Just a quick gander at the overhead on my trip home I can see theres going to be a difference, but how much I'm not quite sure yet. Need to check it out after a tank. The issues I have are, some really hard jerkiness when you let off the accelerator and let the truck coast to a stop. Almost like its gearing down as you would driving a standard. Also from a stop, going up through the gears, it will shift into a higher gear (or perhaps a torque lock-up) then back down, then back up then down then up. Really weird. From the posts on various forums who say they got it to work, looks like I'm the only one with these issues. I might just go reprogram the truck to see what happens.
#15
jerkiness may indicate that SuperChips is trying to lock up the torque converter clutch more quickly or in different circumstances
that would improve MPG in city driving, but might wear out the tcc in less miles
it is easy for me to see how SuperChips can change settings above 80% throttle opening and not violate EPA rules,
but I can't see how that SuperChips can change part throttle engine settings below 80%
and not risk a EPA fine or lawsuit that could really hurt their company
as Detroit Diesel, IH and Catepillar got huge fines from the EPA for messing with lower power settings to improve MPG on diesels just a few months ago
that would improve MPG in city driving, but might wear out the tcc in less miles
it is easy for me to see how SuperChips can change settings above 80% throttle opening and not violate EPA rules,
but I can't see how that SuperChips can change part throttle engine settings below 80%
and not risk a EPA fine or lawsuit that could really hurt their company
as Detroit Diesel, IH and Catepillar got huge fines from the EPA for messing with lower power settings to improve MPG on diesels just a few months ago
#16
#20