Strange problem with AVG MPG readout
Thread Starter
Race Director
Joined: May 2001
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From: Guelph, Ontario
Strange problem with AVG MPG readout
This has happened to me about 4 or 5 times now (that I've noticed) and am curious if it's happened to any of you. Does anyone find that all of a sudden your average MPG sort of "corrects itself" and suddenly drops 0.2 or 0.3 MPG all at once.
On my way home from work the average MPG said 20.5 pretty much the entire way. I haven't reset it in a week or so, so it hasn't been fluctuating now that it's been a while since the last reset. I was driving at a steady 60mph, and looked away for a second and then all of a sudden the average dropped down to 20.2. There is no reason why it should've dropped like that, since I was at a steady speed. And as mentioned in the beginning, this is not the first time I've noticed it doing this.
Has it happened to anyone else here?
On my way home from work the average MPG said 20.5 pretty much the entire way. I haven't reset it in a week or so, so it hasn't been fluctuating now that it's been a while since the last reset. I was driving at a steady 60mph, and looked away for a second and then all of a sudden the average dropped down to 20.2. There is no reason why it should've dropped like that, since I was at a steady speed. And as mentioned in the beginning, this is not the first time I've noticed it doing this.
Has it happened to anyone else here?
Thread Starter
Race Director
Joined: May 2001
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From: Guelph, Ontario
Originally Posted by Goonie
its the way you drive, my fluctuates all the time... just the computer adjusting to you driving style.
Burning Brakes
Joined: Oct 2005
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From: Chicago il
i just think its the computer compulation issue... no reason to worry or think about it...
if you fill up a tank and drive it you will notice that the average mpg is different than what you actually get...
i dont know enough to diagnose this but some will chime in.
if you fill up a tank and drive it you will notice that the average mpg is different than what you actually get...
i dont know enough to diagnose this but some will chime in.
Thread Starter
Race Director
Joined: May 2001
Posts: 15,324
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From: Guelph, Ontario
Originally Posted by Goonie
i just think its the computer compulation issue... no reason to worry or think about it...
if you fill up a tank and drive it you will notice that the average mpg is different than what you actually get...
i dont know enough to diagnose this but some will chime in.
if you fill up a tank and drive it you will notice that the average mpg is different than what you actually get...
i dont know enough to diagnose this but some will chime in.
Melting Slicks
Joined: Nov 2003
Posts: 2,887
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From: Macomb MI
St. Jude Contributor
Number of reason, Inclines in the road, strong head wind at that moment. You may have been moving at 60 but it might of taken a few more ponies to maintain that speed, those fuel economy drops.
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Maybe just a little blip in the computer. Haven't really noticed mine doing that since I rarely keep it on average MPG display.
Thread Starter
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Joined: May 2001
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From: Guelph, Ontario
Originally Posted by JDs00PewterCoupe
Maybe just a little blip in the computer. Haven't really noticed mine doing that since I rarely keep it on average MPG display.
Another odd thing is that my trip odometers reset themselves sometime last week. I reset one of them when I last changed my oil and it was at over 6000 miles, then all of a sudden I checked it and it was at 500 miles.
Racer
Joined: Mar 2004
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From: Sterling Heights MI
Originally Posted by Sponge Vette
Number of reason, Inclines in the road, strong head wind at that moment. You may have been moving at 60 but it might of taken a few more ponies to maintain that speed, those fuel economy drops.
Thread Starter
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Joined: May 2001
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From: Guelph, Ontario
Originally Posted by mwagne16
WOW! That must be some head wind to get 20 MPG in a C5 at 60mph!
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From: Guelph, Ontario
It happened again tonight! I had brought the average back up to 20.6 this morning, and on the way home it was fluctuating between 20.4 to 20.5. I got stopped at a light and it went from 20.5 down to 20.2 instantly! Something is definitely odd.
