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#16
12-07-2005, 04:16 PM
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Originally Posted by C-17 Pilot
I had my truck reflashed about six weeks ago (TSB 05-10-12). The reflash fixed a lot of issues, but I can't say it resulted in any significant improvement in MPG.
If your MPG recently began to decline, it's more than likely related to the winter gas blend you are using. Try using a different station and see if that helps. Also, like sweetsc said, these are heavy trucks, so even with a better gas blend you likely won't see a huge improvement.
BTW, the reflash is still worth the time and effort, even if it doesn't improve your MPG.
If your MPG recently began to decline, it's more than likely related to the winter gas blend you are using. Try using a different station and see if that helps. Also, like sweetsc said, these are heavy trucks, so even with a better gas blend you likely won't see a huge improvement.
BTW, the reflash is still worth the time and effort, even if it doesn't improve your MPG.
#17
12-07-2005, 06:33 PM
#18
12-07-2005, 08:54 PM
that gas milage is normal for a 4X4 supercrew. I had the reflash and it didn't help. I get arround 11.5 to 12 in town and 15 to 16 on the highway. that averages out to arround 13 -14 mixed. the reflash will help your throttle lag though and even give it a little mor pep. the reflash might get you .5 mpg's but don't expect alot more.
#19
12-07-2005, 10:35 PM
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I had mine reflashed and to be honest with you it didn't help out a whole lot. The lag in the throttle is still there but not as bad as before and the gas mileage didn't change any either. I try not to go over 2200rpms and my gas mileage is usually between 13.9 and 15 provided that I don't tow anything then it drops down to about 12.5.