MPG lie-ometer
#1
MPG lie-ometer
What kind of accuracy are people seeing on the trucks calculations of MPG vs. Pen & paper recording of filling up at the pump and mileage driven?
I ask because I've been getting such un-impressive mileage based on the lie-ometer, I finally calculated it the old fashioned way expecting to get better results, and they were significantly worse!
Trucks numbers:
370 miles driven, 25.5 gallons used for 14.5MPG
Realtime numbers:
370 miles driven after full tank, 29 gallons to fill again for 12.7mpg! WTF!
Granted I'm running 35's and a 2.5" level but 12.7 out of a 3.5 EB come on!
This is on my daily commute to work not hauling anything but myself. 3 miles down the hill at 60mph, 1.5 miles through town at 40mph with no stops, then another 14 miles on the interstate at 75mph, and the same in reverse order coming home.
I ask because I've been getting such un-impressive mileage based on the lie-ometer, I finally calculated it the old fashioned way expecting to get better results, and they were significantly worse!
Trucks numbers:
370 miles driven, 25.5 gallons used for 14.5MPG
Realtime numbers:
370 miles driven after full tank, 29 gallons to fill again for 12.7mpg! WTF!
Granted I'm running 35's and a 2.5" level but 12.7 out of a 3.5 EB come on!
This is on my daily commute to work not hauling anything but myself. 3 miles down the hill at 60mph, 1.5 miles through town at 40mph with no stops, then another 14 miles on the interstate at 75mph, and the same in reverse order coming home.
Last edited by alping45; 04-07-2016 at 03:12 PM.
#2
double posted admin please delete.
Trending Topics
#8
Senior Member
Go from 75 to 68, set the cruise, and see what happens.
#9
#10
I logged 8 consecutive tanks, 227 gallons, and the lie-o-meter's reported gallons used was low (and mpg calculated from same was high) by 5 to 9 percent per tank with an average error of 6.5 percent.
Even correcting for the reporting error it's still doing better than I'd expected.
Even correcting for the reporting error it's still doing better than I'd expected.
Last edited by aspade; 06-22-2016 at 04:59 PM.