V-6 MPG Post up!

V-6 MPG post em up!

  • Less than 10 MPG

    Votes: 0 0.0%
  • 10 to 12 MPG

    Votes: 0 0.0%
  • 13 to 15 MPG

    Votes: 13 14.4%
  • 16 to 18 MPG

    Votes: 41 45.6%
  • 19 to 21 MPG

    Votes: 28 31.1%
  • 22 to 24 MPG

    Votes: 7 7.8%
  • Over 24. (please tell me how you do this!)

    Votes: 2 2.2%

  • Total voters
    90
  • Poll closed .
1800 odo reading
87 Octane
20.5mpg (computer reading) I last reset it when i drove off the dealer lot. Mostly highway driving too and from work between 65 and 75mph. Just took a 500 mile road trip with 5 people in the car and between 75 - 80 mph.

Im sure if I reset the computer after each fillup I will get more accurate results. Im very happy with the results so far though.
 
The computer is not accurate, never has been. You must do a hand calculation, and be prepared to see the difference.
 
Just did a calculation with this last tank, also reset th computer.

Computer 20.5 mpg
Actual 18.5 mpg

95% street/5% highway
 
Tonight I Filled up the tank, and checked my mileage... other than my road trip, its the best mileage the 4R has EVER gotten,

I always top off the tank in the same manner, so here are the numbers

16.4 Gallons used
362 miles driven

That equals 22.07 MPG

Eat that V-8 guys!!!!


This was a weeks worth of driving my normal commute. about 75% Highway and 25% City. I was using the cruise control alot and was driving 60MPH on the highway.
 
V-6 Gas Mileage

2004 SR5 V6

85% Highway (rural and Interstate/limited access mostly)
15% city/town stop and go
mostly daytime driving in about 85 degrees and muggy air
98% non aggressive driving (I punched it a few times on the 2-3 lane roads to pass slower traffic)
I typically drive approximately 67-75 mph on the highway
I use cruise control A LOT
I used 87 octane chevron gas with techron
I calculated these figures after traveling about 342 miles on a tank of gas
I did NOT top off the gas each time I filled up and I used the same pump at the same chevron station.

20.5 actual mpg
22.2 computer reading (I reset it as soon as I filled up before leaving the pump)

I have gotten as good as 21.5 mpg (drivin' like an old man) and as poor as 18.5 (kickin' it a lot) mpg on a tank of gas since I bought it.

I am overall pleased with my gas mileage, especially after reading about the new 05 pathfinder
 
My last tank yielded 20.3 MPG with about 75% highway. Half of that was at 80 mph and the rest war around 60 mph with some mountain driving.

Overall I've been getting between 18.5 and 22.5 depending on how much of the tank was used on the highway versus in town. I've noticed that it does much better with moderate highway speeds.


For those of you running the 265/70s, your tires are about 3.5% bigger than the stock 265/65s. This means that you need to adjust your calculated mileage by 3.5%. (Alternately you could adjust the miles you use in the calculation by 3.5% -- the result is the same.) So, if you calculated 20mpg, you need to multiply that number by 1.035. 20 * 1.035 = 20.7mpg. This should make you feel a little better.

I would expect, though, that the larger tires are getting worse gas mileage due to extra rolling resistance. On my previous SUV, I lost 1mpg when I went to a larger and more aggressive tire. I'm sure that both aspects contributed to the mileage.
 
First fill-up on 2005 SR5 V6 4WD yielded 17.5 in ALL city driving. I am taking a 200 mile trip next weekend so we'll see.
 
coldbivy said:
My last tank yielded 20.3 MPG with about 75% highway. Half of that was at 80 mph and the rest war around 60 mph with some mountain driving.

Overall I've been getting between 18.5 and 22.5 depending on how much of the tank was used on the highway versus in town. I've noticed that it does much better with moderate highway speeds.


For those of you running the 265/70s, your tires are about 3.5% bigger than the stock 265/65s. This means that you need to adjust your calculated mileage by 3.5%. (Alternately you could adjust the miles you use in the calculation by 3.5% -- the result is the same.) So, if you calculated 20mpg, you need to multiply that number by 1.035. 20 * 1.035 = 20.7mpg. This should make you feel a little better.

I would expect, though, that the larger tires are getting worse gas mileage due to extra rolling resistance. On my previous SUV, I lost 1mpg when I went to a larger and more aggressive tire. I'm sure that both aspects contributed to the mileage.
\

so you add 3.5% of miles driven to the total miles driven ?
 
Yes, adding 3.5% of the miles driven to the miles on the odometer will do the trick. I figured 3.5% by dividing 660/638, which was the relative size of the tires given in an earlier post. This will give the actual miles driven. Since the 265/70R17 has 1.035 times the diameter of the 265/65R17 tire, it will travel 1.035 times as far with the same number of revolutions, which is what the odometer is really measuring. The same error will be present in the speedometer, so if it says 80, you're actually going 80mph*1.035 or 82.8 mph.

Note that this works well if the odometer and speedometer are correctly set for the OEM size tire, which may not be true. I saw a post on this thread that claimed that the odometer was off by 3% or so with the OEM size tires. If that is true, then the error with the 265/70s would be 1.03 *1.035 = 1.066.

Also, the more worn your tires are and the lower the air pressure, the less distance you will have traveled.

If you wanted to be really accurate, you'd need to measure the actual error in your odometer by driving a known distance and comparing with the odometer reading. Has anyone done this? If so, please share.
 
observation

In the Tacoma forum the 05 V6 4x4 owners are getting 16 to 17 MPG. A lot of complaining over there but I am surprised that the 4 runner owners here are doing much better. Same engine (on 05) right?. The 4cylinder 4x4 owners are claiming only 21MPG.

So what makes the 4runner 4x4 any different?
 
Tacoma owners must have lead feet!

Or could it be a Aerodynamic reason maybe? Pickup beds are not the best design for Aerodynamics...
 
That's probably what it is...(aerodynamics)

By the way, I reset my trip computer when I left my house in San Antonio, Texas on Thursday the 24th of June. I am now in Vancouver, BC, Canada and have been driving around up here since Thursday of last week (we spent 2 days in San Fran as well on the way up here and took many backroads and climbed MANY mountains) and although I've put on 500 miles of driving in the last 9 or so days IN the city of Vancouver (read: HORRIBLE traffic and millions of stoplights), my trip computer still shows 20.5mpg.

Actual calculations show that I am probably netting around >19mpg so far (this includes maintaining anywhere from 70-85mph up every 6+% grade I've come across), but I will know 100% for sure when I plug all of my mileage and gallon-age figures in to a spreadsheet when I get back home to Texas. We leave tomorrow (Sunday) morning to head back and should make the 2400-2450 mile drive home in 3-3.5 days, including stopping at night to rest.

According to the GPS, my top speed so far on the trip has been 108mph. Hey, I needed to get past a few slow cars at the time :)

Ricky



Boaz said:
Tacoma owners must have lead feet!

Or could it be a Aerodynamic reason maybe? Pickup beds are not the best design for Aerodynamics...
 
Actual Odometer error

While driving on a relatively flat, strait stretch of road this weekend, I decided to try to determine how far off the speedometer and odometer are on my 05 V6 with OEM Bridgestones.

Here is what I did. I drove with the cruise control set on 80 for three miles, measured by interstate mile markers. I timed the three miles with a stopwatch at 132 seconds. 3mi/132sec = 81.8mph.

I then drove for 16 actual miles after resetting the trip odometer. The trip odometer measured 15.6 miles. 16/15.6 = 1.0256. (2.5% error)

My measurements are somewhat crude since there is some error in both my measurments and the milemarkers I used, but it does appear that the speedometer/odometer in the 05 4Runner is a little slow. I'm pretty confident it is off by 2-3%. If we assume 2.5%, then all of the mileage that you've been using to calculate mpgs is low. If you calculated 20 mpgs, you actually got 20.5 mpgs. For those with 265/70R17 tires, the error is larger at around 5-6%.

It is funny, but my wife's Honda Civic has a speedometer which is off by around 5% in the other direction. I guess Honda wanted people to think that the Civic gets even better gas mileage than it really does.
 

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