Check my math please. MPG

[Ifirefight]

A few weeks ago I filled up, light was on. It took 15.795 gallons.
Today light was on, filled up it took 15.965 gallons.
I went 206 miles. According to my calculations that’s 12.9 MPG?? Does that seem right?
01 T4R 162k 2WD. I am in Florida so some of those miles was probably using the A/C.
Thanks.


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[Bijan]

Yep. Don't worry about it. If you're trying to diagnose an issue - I suggest a scan gauge to get the most accurate MPG reading.

 

[I_bRAD]

A few weeks ago I filled up, light was on. It took 15.795 gallons.
Today light was on, filled up it took 15.965 gallons.
I went 206 miles. According to my calculations that’s 12.9 MPG?? Does that seem right?
01 T4R 162k 2WD. I am in Florida so some of those miles was probably using the A/C.
Thanks.


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Your math is correct

 

[Ifirefight]

Hard to believe that my 2017 F250 Crew cab long bed 4WD with 35s and a lift kit gets 12.9 mpg avg..

And my boys little 4runner get the same mileage.

Good thing I’m getting the wife a Tesla to offset our carbon footprint..[emoji849]



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[Bijan]

I like how the hood of the ford meshes with the 4Runner and makes it look more aggressive... kinda?

 

[MK_98]

Yep. Don't worry about it. If you're trying to diagnose an issue - I suggest a scan gauge to get the most accurate MPG reading.

X2 I suggest a ScanGuage2 as well. I'm getting about 16-18 now on stock 31's being able to monitor

 

[Hopeless Diamond]

Hard to believe that my 2017 F250 Crew cab long bed 4WD with 35s and a lift kit gets 12.9 mpg avg..

And my boys little 4runner get the same mileage.

Good thing I’m getting the wife a Tesla to offset our carbon footprint..[emoji849]

Similar here, my 6.7L diesel gets better mileage than my 4runner.

What are you basing how many miles you traveled on? Odometer could be way off with tire changes, etc.

 

[Ifirefight]

Yep. Don't worry about it. If you're trying to diagnose an issue - I suggest a scan gauge to get the most accurate MPG reading.

I’m not really trying to diagnose an issue, just wondering if that mileage is about right. It runs great with no issues. I will look into the scan gauge though. I love the 4runner so I guess it’s not an issue, I was just surprised by the number...


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[Ifirefight]

Similar here, my 6.7L diesel gets better mileage than my 4runner.



What are you basing how many miles you traveled on? Odometer could be way off with tire changes, etc.

Odometer on the F250 IS OFF by a bit with the tires,etc.. but it’s reading lower than actual mph so I’m good with that. I’m basing my mpg in the Ford on the computer that calculates it in real time that came with the vehicle... I’m not complaining about my mileage in that beast though..[emoji41]


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[Bijan]

I’m not really trying to diagnose an issue, just wondering if that mileage is about right. It runs great with no issues. I will look into the scan gauge though. I love the 4runner so I guess it’s not an issue, I was just surprised by the number...


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I fluctuate between 180miles per tank and 230 miles per tank on a fill up. Calculating just by miles per tank / gallons per tank isn't ALWAYS accurate I've been told though.

 

[4Runner4Leon]

I fluctuate between 180miles per tank and 230 miles per tank on a fill up. Calculating just by miles per tank / gallons per tank isn't ALWAYS accurate I've been told though.

I expect that "distance driven divided by gallons to fill" method to be more accurate than a gauge, especially over several tank fills. That is just basic physics (not counting errors from fill to fill, which you reduce by doing numerous fills). The scangages and similar devices have to make an assumption of how much fuel gets injected at each pulse, so unless you calibrate it against a known reference, it's a guessing game as to how accurate they are. I "got" 24 mpg with my Torque Pro, but the real highway mileage is around 18 mpg, over 3000 miles.

12.9 city is a little sad even for the 4Runners . I'm at around 16 around town, on a totally stock setup. But maybe with AC on, and in exceptionally heavy stop and go traffic, a modified 4Runner can be that low.

 

[phattyduck]

The ScanGauge has a calibration feature that you must use to get accurate results. Mine reads about 7% from actual mileage. Calibration involves miles traveled divided by gallons on a fill-up.

As for the MPG on you 4Runner... it should be higher (assuming 2WD V6 auto?) - unless its doing all city and short trips. And/or your sun drives like an ******* (total possibility - we were all there at one point!). 18-22 in mixed but mostly highway should be achievable. Gotta keep highway speed reasonable (<70) and avoid short trips though.

-Charlie

 

[4Runner4Leon]

The ScanGauge has a calibration feature that you must use to get accurate results. Mine reads about 7% from actual mileage. Calibration involves miles traveled divided by gallons on a fill-up.

That's exactly right - to make your scangauge accurate, you first have to calibrate it using the "miles/gallons" technique. After that, the scangauge becomes a good tool to monitor mileage.

Gotta keep highway speed reasonable (<70) and avoid short trips though.

That's the biggest impact on highway mileage - it drops like a rock above 70ish mph.

 

[Ifirefight]

The ScanGauge has a calibration feature that you must use to get accurate results. Mine reads about 7% from actual mileage. Calibration involves miles traveled divided by gallons on a fill-up.



As for the MPG on you 4Runner... it should be higher (assuming 2WD V6 auto?) - unless its doing all city and short trips. And/or your sun drives like an ******* (total possibility - we were all there at one point!). 18-22 in mixed but mostly highway should be achievable. Gotta keep highway speed reasonable (<70) and avoid short trips though.



-Charlie

Almost all those miles.. I’d say 90 percent were city miles. Any highway miles were less than 20 mile trips. I have been driving it because I don’t want to put miles on the F250..(I have 24,000 on it in just over a year) My son has his learners permit and has only driven it a handful of times with me in the vehicle. So I use the T4R for my grocery getter and doing errands, I pretty much drive like an old lady so I know I’m not killing the mileage by my driving habits. It is bone stock auto 2WD.


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[thegipper]

My ultra gauge is reporting in the last year, I've been getting 16.3 mpg. That is mostly "city" ish driving with some back roads. I've also did the manual calculation and it is pretty much exactly what my Ultragauge has been saying. I also warm it up every morning in from about November to April (frozen tundra WI).

My wifes 270hp highlander is getting about 24mpg. It's crazy how 14 years in engine technology can make such a difference.

 

[Ifirefight]

My ultra gauge is reporting in the last year, I've been getting 16.3 mpg. That is mostly "city" ish driving with some back roads. I've also did the manual calculation and it is pretty much exactly what my Ultragauge has been saying. I also warm it up every morning in from about November to April (frozen tundra WI).

My wifes 270hp highlander is getting about 24mpg. It's crazy how 14 years in engine technology can make such a difference.

Yes I agree with the engine technology analogy.. seems they can squeeze much more mpg out of the newer engines these days.


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[Ifirefight]

Ok, after reading a bit, I cleaned the K and N air filter and re oiled.. its wasn’t bad. I also read that an old air flow sensor could effect mileage so I ordered one. I have no CEL on but was thinking of replacing the sensor just because it’s probably original. My question is, what exact fuse do I pull to reset the computer/driving habits?

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[phattyduck]

You can normally just clean it with MAF cleaner. The important bit is up 'inside' the tube - it is a very thin wire that gets gummed up.

Pulling the 20A EFI fuse under the hood will reset the ECU.

-Charlie

 

[Ifirefight]

You can normally just clean it with MAF cleaner. The important bit is up 'inside' the tube - it is a very thin wire that gets gummed up.



Pulling the 20A EFI fuse under the hood will reset the ECU.



-Charlie

20A EFI fuse. Copy that! Thank you.


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[Ifirefight]

20A EFI fuse. Copy that! Thank you.


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Ok, I pulled the old one off, the numbers don’t match the new one I ordered even though it says it will fit. They look the same.. anyone know if the part I ordered is compatible.? 2001 4runner auto/2WD if this makes a difference.

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