The car's estimated fuel usage while you are driving??? that will literally tell us nothing unless you can also give us you speed, your exact RPM, duration at that RPM, amount of throttle being applied, what gear you are in, wind speed, wind direction (head wind, tail wind, cross wind), incline/decline of the road, the grip and drag coefficient of your car, That is a dynamically calculated estimate of fuel economy at that exact moment if you were to prolong that exact combination of everything above. I've seen it hit over 50L/100km under hard acceleration, which is a fantastic 4.7 mpg. That's terrible fuel economy, but I know it's like that for all of 5-10 seconds tops.

The only way to accurately see fuel economy is to start at a full tank, drive until you feel like refilling the tank, log that mileage, find the difference between a full tank (13.2 gallons or 50L) and how much you filled up, then calculate the fuel economy based on what you filled versus how much you traveled in that amount of fuel.

I get a about 45061.6 mpg:bonk:
mpg = meters per gallon

I just use Fuelly on my smart phone and enter my numbers before I pull away from the pump. Brain dead easy. Last fill, 31.5 mpg with a little city, 40 minutes per day of gridlock freeway, and another hour of freeway that includes going over a 1400' mountain pass.

Oh, my ........:sigh:

I figured @SlammedSilly was going to get SlammedSilly over his reported gas mileage.

:popcorn:


humfrz

as did i, i knew these guys would get all butthurt... im not mad, but this scene is just like the 240 scene. no one wants to help anyone out and they just bash every other person... haha

Up here we have valleys higher than that ........ sorry ...... :threadjacked:


humfrz

Ah, some of the guys are jest funnen wich ya......:)

However, for you own edification, you may wish to drag out your paper and pencil and figure your car's mileage the old fashioned way ...... ;)


humfrz

You're complicating the math with extra nonsense. There's no reason to subtract anything from the full fuel capacity. You don't even have to know how much fuel the tank holds.

If you start with a full tank, drive 300 miles and then pump 10 gallons into the tank to fill it up again, you're getting 300/10 = 30 miles per gallon.

If you drive 250 miles and pump 10 gallons to fill it back up, you're getting 250/10 = 25 mpg.

If you drive 250 miles and pump 9.2 gallons to fill it back up, you're getting 250/9.2 = 27.17 mpg.

The calculation is exactly the same regardless of whether you use ten gallons out of a 15 gallon, 30 gallon or 100 gallon tank.

It's not butthurt. Butthurt would be where we were jealous of your impossible fuel economy. Nobody's jealous of your impossible fuel economy, because nobody believes it.

It's not butthurt when people are laughing at you.

Ol extrashaky ain't letten notten slide today ......... ;)


humfrz

You are right. I reread it after posting it and realized it wasn't necessary. Just look at your receipt and it shows what you filled. Duh. My bad. It's Friday and I'd rather be driving the car than my keyboard.