MPG in my sedan

[hyprmiler]

So my 4 door sedan has been running a Scangauge II since Christmas, and I must admit it's awesome.

It's calibrated and accurate to what I belive is correct (11gallon tank / 1.5 liter) and offset of 2.9.

I'm pulling 41-43 mpg highway when I'm doing 58-60mph.

Is this good or is my gauge blowing smoke...

[b_hickman11]

For the Winter that is good. Summer it would be bad.

[hyprmiler]

Thanks for the heads up.

Also curious on a few things.

When my engine is warm it's always 181 degrees Fahrenheit.

Is yours the same? Ever get 50MPG highway (completely flat).

I've noticed with my Scangauge II that even the SLIGHTEST incline I drop mpg, I can't believe how sensitive this thing is.

[BailOut]

When my engine is warm it's always 181 degrees Fahrenheit.

Is yours the same? Ever get 50MPG highway (completely flat).

My engine temperature is always 186F. It never occurred to me that someone else's would be different.

During the warm months it is easy to get 50+ MPG on the highway. Just stick to 55 MPH rather than 58-60 and keep your tire pressures at least at max sidewall.

It sounds like you're off to a great start, but check out the stickies in this forum for some more efficiency tricks and ideas. :smile:

[hyprmiler]

I do thank you for all your time and the wealth of knoweldge and information found on these forums =)

[deerebilt]

since new march 08, now 34k miles my overall average is 45.5 mpg. been low to mid 40s in winter and low to mid 50mpg is summer

[Yaris Hilton]

I think the nominal thermostat opening temperature is 184 F. They're not high precision devices, and open gradually over a range of temps, not all at once. In warmer weather it'd likely settle somewhere above the thermostat temp and fluctuate with engine load and vehicle speed.

[Kaotic Lazagna]

So my 4 door sedan has been running a Scangauge II since Christmas, and I must admit it's awesome.

It's calibrated and accurate to what I belive is correct (11gallon tank / 1.5 liter) and offset of 2.9.

I'm pulling 41-43 mpg highway when I'm doing 58-60mph.

Is this good or is my gauge blowing smoke...

Right now, I get 43-50+ mpg going from 58-65mph. If I try driving at 55mph or lower, my mileage dips down to 39-44 mpg. I have no clue why, may be my mods? I also can't take advantage of hangtime as my mph will start to go down, unless my car's hangtime occurs at a TPS of 23 rather than 21.

[Kaotic Lazagna]

since new march 08, now 34k miles my overall average is 45.5 mpg. been low to mid 40s in winter and low to mid 50mpg is summer

That's awesome. I still can't break into the 50's again. When ever I enter city driving, my AFE drops from mid to high 40's into the high 30's or low 40's. Arrrgh.

[talnlnky]

my water temp swings from 184-188 fairly easy.... in the summer months I can often peak in the 190's without pushing the car hard.

40 on the highway is good... tho I think it really all comes down to where you live. Type of gas (ethanol or not, oxygenated or not) flat or hilly, windy or calm, rainy or dry, they all have effects of the mpg's.... I'd also guess that living in a higher altitude would be better due to less oxygen effecting the fuel mixture... and thus not using as much gas compared to somebody driving around at sea level.

[john21031]

.. I'd also guess that living in a higher altitude would be better due to less oxygen effecting the fuel mixture... and thus not using as much gas compared to somebody driving around at sea level.

I don't think there would be any difference... the concentration of oxygen is the same at high elevation and at the sea level, it's just the air pressure is lower at the higher elevation.

[jambo101]

That instant mpg gauge on the Scangauge is a good reference but its tendency to be all over the place all the time gets a bit distracting so i used the X gauge feature to program in an average mpg reading, i've posted this before and find it easier to follow than the instructions in the book= =

From the home screen ( button with red around it ), hit more>more>more>xgauge

Now you can select the memory slot. If its already on 0 and this is the first xgauge you are creating, go ahead and hit the edit button.

You should now be at the TXD screen
Use the + and - buttons on the left side so that the first number is 0 Then use the arrow button on the right side to move over one space Now it depends on what trip function you want to use..
use the + or - again to adjust
0 - for current trip which resets every time you start the vehicle
1 - for today trip which resets after 10 hours of ignition off time
2- for previous day
4- for tank trip

on mine I have 01 for average fuel economy today

next hit the OK button
You should now be at the RXF screen
use the + or - buttons until the first digit is 8.
Then push OK button 3 times until you get to the name screen
Here you can pick any three letters to name your gauge.
I used AFT for average fuel today
Then hit save
Now you can go back to the home screen and hit gauge. Select which of the four spot you want the gauge to appear and hit the button until see the three letters that you just used to name your gauge.