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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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An MPG algerbra problem?
I borrowed a neighbor's 5.4L V8 truck to pick up a trailer. It was a 100 mile round trip. When I got in the truck, the average MPG on the computer was 13.3mpg. When I was done, I had gotten it up to 13.7. Is there enough information to tell what mpg I got over my 100 miles?
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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07-12-2008, 02:45 PM
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Registered
Join Date: Apr 2008
Location: Houston TX
Posts: 8,702
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No, you need to know the previous mileage that gave the 13.3 value. That might or might not be what was on the odometer.
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Mike Bradshaw 1980 911SC sunroof coupe, silver/black Putting the sick back into sycophant! |
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07-12-2008, 02:49 PM
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Kantry Member
Join Date: Feb 2001
Location: N.S. Can
Posts: 6,791
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Not exactly, but if you assume there were about 100 miles on the counter before you started , getting 14.1 mpg over your trip would work out. That shouldn't be too far off at any rate.
Les
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Best Les My train of thought has been replaced by a bumper car. |
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07-12-2008, 02:51 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,850
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What Mike B said was correct. You have to know what the previous miles driven was to be able to determine how your hundred miles would have affected the total.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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07-12-2008, 03:13 PM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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Quote:
Quote:
That's what I figured. There was 50000 miles on the odometer I doubt my hypermiling affected it that much. In all seriousness, I didn't think this was solvable, but wanted to make sure. Owner tells me when driven gingerly, he can get 18 mpg on the highway. This was mostly highway and a 4x4 Harbor Frieght trailer (would've fit in the bed!) so maybe I was doing 18 mpg. I squeezing in 5 gallons of gas, but it wasn't full when I picked it up. thanks
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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07-12-2008, 03:26 PM
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Just thinking out loud
Join Date: Nov 2001
Location: Close by
Posts: 6,884
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Quote:
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83 944 91 FJ80 84 Ram Charger (now gone) |
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07-12-2008, 03:39 PM
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