Quote:
Originally Posted by ticopowell
Your math makes perfect sense to me, and unless it was recording wrong on something, the longer it's in the more accurate it is, but I still dont know why my average mpg's change so much. I am driving back tomorrow and Ill report on how they do, but I expect them to drop to about 12 or less going up parley's canyon (pretty big canyon here), then raise to about 15-17 as I hit the park city exit, then lower to 14 by the time I am to Evanston... and this is without ever resetting the Gryphon. the only time I have ever seen it reset is when I unplug it when going to the dealer to get free oil changes. If anyone's Average mpg's are more steady than mine then please let me know, and even though I got an oil change a little more than a week ago (aka not much time calculating) I have seen this same behavior every time I drive my truck ever since I got the Gryphon, and it's been both trucks too... maybe I have a bad hardware something that doesn't record as many points of data...  Oh well though, I have had mine for almost a year in this truck, and it was almost a year in my other truck too, and I am not planning on changing because of a miscalculation in my percieved mileage... I know I suck at getting good mileage, but I didnt get a truck to get mpg's, I got it because it's useful, and safe, and also fun  ... oh and BTW it hasn't helped get any girls either... maybe that will change in texas...  |
To make it steady out you just have to leave it a long time. The influence earlier was from JUST 25 seconds, if you are cruising along at 60, that is not even half a mile...now consider you can get around 400 miles per tank, and the average doesn't really steady out until after you've driven through the second tank. Because of the swings from regular to 40 mpg
I haven't tested this in a while but I bet if you used the cruise control all the time the average may be more accurate. Part of the inaccuracy is from letting off the pedal while rolling. All the time you spend braking is counted as 40 mpg per reading. I think back and the computer rarely uses 0 throttle so you wont have nearly as much 40 mpg getting thrown into the mix. Only problem is you can't use cruise control in varying traffic.
The only reason I look for ways to improve mileage is because I'm cheap and need to stretch the tanks.
You might be able to get some girls out in Del Rio, last time I was passing through I wanted to take my time.