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Most fuel efficient RPM?
What's a reasonable way to determine at what RPM your vehicle gets the
most mileage per gallon of gas? When driving a stick, I tend to drive by feel. I had an old VW that was content cruising @ 1500rpm or so all day (assuming no noteworthy hills) while my current pickup seems to want to be above 2000. So I'm wondering, at what RPM would I get the best mileage? It seems like mileage may improve if I shifted up a gear on country roads to bring the RPM down to 1500 or so, but the truck feels as if it's bogging. Also, peak HP is made @ 5000 RPM (which feels like redline) & peak torque is made @ 3750 RPM, which may be more telling. It should be noted that a brisk highway run puts me about 3800 RPM, and mileage really suffers compared to the same run @ 65mph. |
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Most fuel efficient RPM?
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Most fuel efficient RPM?
On Oct 17, 4:15 pm, (Timothy J. Lee) wrote:
> In article . com>, > > > wrote: > >What's a reasonable way to determine at what RPM your vehicle gets the > >most mileage per gallon of gas? > > If you have an OBD-II car, plug in an OBD-II scanner that can read out > instantaneous fuel consumption and use it to determine what the fuel > consumption is at various RPMs and speeds. However, you'll need a flat > road with little traffic to conduct your experiment safely. Perhaps > also a passenger reading the scanner and recording RPMs, speeds, and fuel > consumption while the driver tries different RPMs and speeds. > > -- > ------------------------------------------------------------------------ > Timothy J. Lee > Unsolicited bulk or commercial email is not welcome. > No warranty of any kind is provided with this message. Good call. It's a 98, so it should be compliant. Of course, I'd need a scanner that will give me the instantaneous fuel consumption. That may cost more than I could ever hope to save in fuel. |
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Most fuel efficient RPM?
On Oct 17, 4:48 pm, " > wrote:
> On Oct 17, 4:15 pm, (Timothy J. Lee) wrote: > > > > > In article . com>, > > > > wrote: > > >What's a reasonable way to determine at what RPM your vehicle gets the > > >most mileage per gallon of gas? > > > If you have an OBD-II car, plug in an OBD-II scanner that can read out > > instantaneous fuel consumption and use it to determine what the fuel > > consumption is at various RPMs and speeds. > > Good call. It's a 98, so it should be compliant. Of course, I'd need > a scanner that will give me the instantaneous fuel consumption. That > may cost more than I could ever hope to save in fuel. Eh, maybe just take what you can from this guy's experience: http://www.omninerd.com/articles/Imp...uel_Efficiency ----- - gpsman |
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Most fuel efficient RPM?
Scott in SoCal > wrote in
: > " > said in rec.autos.driving: > >>On Oct 17, 4:15 pm, (Timothy J. Lee) wrote: >>> In article . com>, >>> >>> > wrote: >>> >What's a reasonable way to determine at what RPM your vehicle gets >>> >the most mileage per gallon of gas? >>> >>> If you have an OBD-II car, plug in an OBD-II scanner that can read >>> out instantaneous fuel consumption and use it to determine what the >>> fuel consumption is at various RPMs and speeds. However, you'll >>> need a flat road with little traffic to conduct your experiment >>> safely. Perhaps also a passenger reading the scanner and recording >>> RPMs, speeds, and fuel consumption while the driver tries different >>> RPMs and speeds. >> >>Good call. It's a 98, so it should be compliant. Of course, I'd need >>a scanner that will give me the instantaneous fuel consumption. That >>may cost more than I could ever hope to save in fuel. > > A code scanner will always be useful, so you can't really look at it > like that. Just for laughs, about how much is a code scanner? Doug |
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Most fuel efficient RPM?
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Most fuel efficient RPM?
On Oct 17, 8:32 pm, gpsman > wrote:
> On Oct 17, 4:48 pm, " > wrote: > > > > > > > On Oct 17, 4:15 pm, (Timothy J. Lee) wrote: > > > > In article . com>, > > > > > wrote: > > > >What's a reasonable way to determine at what RPM your vehicle gets the > > > >most mileage per gallon of gas? > > > > If you have an OBD-II car, plug in an OBD-II scanner that can read out > > > instantaneous fuel consumption and use it to determine what the fuel > > > consumption is at various RPMs and speeds. > > > Good call. It's a 98, so it should be compliant. Of course, I'd need > > a scanner that will give me the instantaneous fuel consumption. That > > may cost more than I could ever hope to save in fuel. > > Eh, maybe just take what you can from this guy's experience:http://www.omninerd.com/articles/Imp...s_Affecting_Fu... > ----- > > - gpsman- Hide quoted text - > > - Show quoted text - That was a fairly interesting read, thanks. |
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Most fuel efficient RPM?
On Oct 17, 9:46 pm, Scott in SoCal > wrote:
> " > said in rec.autos.driving: > > > > > > >On Oct 17, 4:15 pm, (Timothy J. Lee) wrote: > >> In article . com>, > > >> > wrote: > >> >What's a reasonable way to determine at what RPM your vehicle gets the > >> >most mileage per gallon of gas? > > >> If you have an OBD-II car, plug in an OBD-II scanner that can read out > >> instantaneous fuel consumption and use it to determine what the fuel > >> consumption is at various RPMs and speeds. However, you'll need a flat > >> road with little traffic to conduct your experiment safely. Perhaps > >> also a passenger reading the scanner and recording RPMs, speeds, and fuel > >> consumption while the driver tries different RPMs and speeds. > > >Good call. It's a 98, so it should be compliant. Of course, I'd need > >a scanner that will give me the instantaneous fuel consumption. That > >may cost more than I could ever hope to save in fuel. > > A code scanner will always be useful, so you can't really look at it > like that. > -- > MFFYCam Videos Galohttp://www.geocities.com/mffycam/htt...ills.blip.tv/- Hide quoted text - > > - Show quoted text - Maybe, but it looks like I'd be a few hundred into it to get one that will give me fuel consumption and such. So far, every time I've needed a code scanner, I've got to Advanced Auto Parts and borrowed theirs for free. So basically I'd be spending hundreds for this experiment, and the convience of having my own scanner instead of driving up the street to Advanced. It's a tough sell. |
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Most fuel efficient RPM?
"Scott in SoCal" > wrote in message news > DYM > said in rec.autos.driving: > >>Just for laughs, about how much is a code scanner? > > http://www.autotap.com/product_family.asp?FamilyId=260 > -- Or, if you have one of the larger auto parts chains in your area, you can leave a deposit (usually 200 bucks) and rent one. I know that Checker-Schucks-Kragen-Murray's stores will, I believe Autozones do, too. Bernard |
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