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Date: Wed, 23 Mar 2005 20:35:14 GMT
From: "Dexter J" <lamealameadingdongnospamlamelame.org>
Subject: Re: 9-5 Aero speed vs. gas mileage


Salutations: On Wed, 23 Mar 2005 20:04:23 -0000, Gary Fritz <fritzxxxnospamrii.com> wrote: > "Dexter J" <lamealameadingdongnospamlamelame.org> wrote: >>>> Basically - I'm averaging about 37-40 miles to the imperial >>>> gallon at a steady 60-65mph on the highway and about 25-27mpg >>>> (30-35mph) around town. >> >> In answer to your question - yes - I was averaging about 35mpg at >> 70-75mph and about 22mpg at 35-40mph throughout the winter. > > So you had somewhat lower mpg at 70-75mph. But you also had > significantly lower in-town mpg during the same time. So it's hard to > say what caused what. It was particularly chilly this winter here and that will consume more fuel on short hops on it's own account. I also tend to use lower gears around town given potentially slippery conditions. The TCS system operates as advertised (I'm using a 5 speed model), but I still like a little range to work with going around corners. The highway figures do not surprise me. You are not winding up the turbo accelerating and decelerating as much for the total miles covered and the hop from 60-75mph isn't much more than a couple of hundred rpm overall. Moreover, the electrical defrosters and blowers are not working as hard between starts/over time as they would in city use. That said, as evidenced by the speed recorded by the officer, I would tend to kick it down pretty deeply when an available passing lane was at hand. I have been recording the figures and resetting since the fall at fuelling. I have some odd gremlins that I want to sort out and while it is not definitive information - following average fuel consumption over given periods of time can provide some feedback on work performed. >> Be interested in how your second test run goes - I would do it >> sooner than later as the octane ratings will change in the coming >> weeks as spring gets here and that will throw off your >> calculation substantially I think. > > Actually I don't recall ever seeing the octane levels change around > here. But our winters (in Colorado but not in the mountains) are a lot > milder than yours. > > In any case, I'll do both the high- & low-speed tests at about the same > time, probably on the same tank like I did last week, so the gas > formulation shouldn't be an issue. > > Gary Standing by and interested in your report. Hey - I wonder if smaller changes in altitude at higher altitudes would impact your figures? Never been out your way, is there a climb to the Airport? -- Radio Free Dexterdyne Top Tune o'be-do-da-day Stanley Brothers - I'll Fly Away http://www.dexterdyne.org/888/158.RAM all tunes - no cookies no subscription no weather no ads no news no phone in no sign up required - all the Time

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