8th Generation Honda Civic Forum - View Single Post - Civic Si: Your Gas Mileage
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Old 04-11-2007, 08:21 PM   #121 (permalink)
Janizary
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Join Date: Nov 2005
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Frankly, Tom, until you have a tool and can accurately measure your actions as they relate to your vehicles operation (like those of use with scangauges can) your opinion is just that, an opinion. Its been done, it continues to be done. I, and others here, have recorded high 30s tanks in mixed driving. If I had the opportunity (and the patience) to run through a full tank on a flat stretch at 50mph in 6th gear, mid 40s is what the car averages under those conditions. The tool confirms this and, properly calibrated, is accurate within 2%.

Without a tool to measure your performance against, your personal habits, whether you consider them to be 'hard' or not, are not being measured against a live return of data to show 'exactly' how your driving habits affect the MPG performance of your vehicle.

If you consider this an exercise in 'hypermiling' it may make more sense. You are not typically going to drive in the manner that will absolutely maximize your mileage. As stated, driving 50mph is 6th gear from point A to point B would likely drive you mad, however, that MPG is not only possible, but is accurately measurable, if you can take the tedium. Visit a site that has hypermiling participants, most are using some form of scan tool to use live data to absolutely maximize MPG by driving in very abnormal driving manners.

I've done 37mpg going back and forth to California (which has uneven terrain between here and there) measured on the scanguage, confirmed on the actual miles to gallons calculation. 60mph cruise setting. Did I particularly like adding an extra hour to my drive by driving that slow? No, but I wanted to see what kind of mileage I could get by utilizing the data from the SG.

On the other hand, my input, and the others with SG's input IS, at the end of the day, anecdotal, and therefore subject to suspicion. I get $1 from the maker for each SG sold Really...

None of this is a matter of bragging as, frankly, driving in a manner to actually get that kind of milage is, well, a bit perverse, annoying to other drivers, and certainly not what this car is meant for. Choosing to actually conduct such experimentation probably requires a certain amount of lunacy on our parts.
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