The reason I haven't been updating my fuel logs:

[Christ]

Originally Posted by cfg83

Christ -



I note the third digit in the details section and round up/down as necessary. That way the data is all there.

CarloSW2

Olympic sport? Extreme Data Gathering/Recording!

I realized a long time ago that it's just not going to change anything horrifically if I were to just round the mileage down and the gallons up every time. After all, it's only a few 1/100 of a gallon that gets changed, and that's WELL within even allowable pump error (FTC says it's OK to be off by some unbelievably small number, apparently.)

[jcp123]

I do something similar - I keep no less than four logs, so the entire data set IS there if and when I want to look.

[cfg83]

Christ -

Originally Posted by Christ

Olympic sport? Extreme Data Gathering/Recording!
I realized a long time ago that it's just not going to change anything horrifically if I were to just round the mileage down and the gallons up every time. After all, it's only a few 1/100 of a gallon that gets changed, and that's WELL within even allowable pump error (FTC says it's OK to be off by some unbelievably small number, apparently.)

Yup, rounding evens out over time. I use the details section mostly to have all the information in one (ethereal) place. I keep these little notebooks in my car that, once filled up, inevitably dissappear into my bags 'O crap.

If I were you (and I'm not), I would record the MPG on the forum in some way. If I split it into a "Cara at Work" fuel log, I would try to roughly figure out my hauling load for that tank and keep it in the details section. In that way I would have a rough way to calculate the fuel efficiency of the "work" that my car is doing.

On a similar note, I re-purposed one of my Trip Logs to be a repair and/or mod log. That way, in theory, I can correlate changes to the car to changes in MPG.

CarloSW2

[Christ]

Well, when I fill up this time, I'm going to include it in the normal fuel log for Cara. I'm also going to zero out all the logs from Granny, since she's not mine anymore, and re-purpose that one for Cara's working trips, since, apparently, working will become *the norm* for her shortly.

Once I get the Metro situation figured out, I'm going to start using the Metro as a DD (if it's good enough for the purpose), and then I'll be working on/using Cara specifically so I don't have to go get a truck.

[JasonG]

I like your dual logs.

Good idea to keep them clearer.
1 MPG, wow that thing guzzles

[Christ]

Originally Posted by JasonG

I like your dual logs.

Good idea to keep them clearer.
1 MPG, wow that thing guzzles

Good laugh... I've decided that I'm going to post the next fill in the work log instead of with everything else. Unfortunately, I couldn't get rid of all the fills, so I had to keep one to be edited (probably tomorrow) when I fill 'er up again.

[IsaacCarlson]

and hauling firewood. I think it is near 30mpg but not sure since i have to scrounge up change to put in a gallon or two at a time.....

[Old Tele man]

Originally Posted by JasonG

1 MPG, wow that thing guzzles

...yeah, but it makes for real simple mathematics: 1 MPG =1 gallon per mile (GPM)!

...which is basically what the oiriginal Chrysler Abrahms turbine-engined tank got! Back during the Carter administration, I instrumented and measured its fuel-consumption tests at the Yuma Army Proving Ground...300 gallon fuel tank = 300 mile range...which was virtually same as the GM variable-compression ratio diesel tank.

[99LeCouch]

Even carpooling and flying along at 70 mph I'm still beating EPA. Plus my car is really slow at doing emissions tests so it gets out of fuel-waste, protect-the-catalyst mode. Oh well, my mileage will improve. 31 mpg today running around the highways around town, and fighting traffic at the stores.

[Christ]

I haven't updated yet, because of the way things ended up happening, but it's roughly 28 MPG with a good bit of EOC on this tank. I think I have to perfect my EOC method, though... I'm getting into areas where I don't anticipate certain things, and have to start back up sooner than I should, so I lose benefit.

Also, once wife goes back to school, I'll have more time that I can work on Cara, especially on warmer days, when I can have my kid outside with me for any length of time without him getting too cold, so I'll be able to spend some time getting my air shocks on the back of Cara, and seeing about some mods for better efficiency, like the lockup switch, and an alternator-off circuit, engine kill switch, few other things.