Quote:
Originally Posted by Jim Allen
Great info, Jack. I will keep the mitts off the reset!
I'll now have to go back and retest my calculated MPG and compare it to the AVG mpg from the Gryphon to determine an error. Considering that if the unit holds only 100,000 samples, over a 360 mile tank of fuel, resetting at fillup would have skewed the initial reading bigtime but by the end of that tank, it should be pretty stable.
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Once upon a time I suggested that probably the Gryphon Avg Econ would differ from the true Econ by a fairly "fixed" amount. I don't know if this is true, because I only monitor Inst Econ. However, if it does, then it's simple to just apply the correction mentally.
Inst Econ certainly gives you a feel for "excess" usage or economical usage. However, I find I just tend to drive the way it "feels right" to get me where I want to go and to hell with the mileage.
I've been monitoring mileage using a spreadsheet. Over 5671 mostly highway miles of non-towing, I averaged 15.1 mpg. Towing my 3600# trailer over 3559 miles, I got 12.6 mpg.
- Jack