V8 mpg

[Ohhh S.k. CFPB]

its about a 5% difference after calculating the size difference from stock tire size from the 275. so if you do (mileage drivenx1.05)= correct mileage(x) then (x)/gallons

edit:
my millage might just suck cuz it seems my AC compress turns on about every 10 secs or so, and i have checked to see if there is 134a in the system with the glass eye and its bubbling

 

[WI_4Runner]

2007 V8 4wheel - 13 around town, can squeeze up towards 18-19 on highway drives. Mostly avg around 15-16 ish for a mix. Live in a hilly area, which never helps....

 

[BlackWorksInc]

Out of curiosity, what octane are you guys using? I just started using Premium about four or five tanks ago; I realized that the price difference between a tank of regular and a tank of premium was not a big deal to me.

 

[Minn3sota]

Honest to goodness numbers using an iPhone app.

V8, K&N 63 series intake, new spark plugs. Fresh oil. This data was logged using receipts from a single work trip from Minneapolis MN, to Tucson AZ. This was done out of an interest to see exactly how octane rating affected mpg in my 4R. You can see the clear division between MPG dependant on octane ratings.

89 Octane: 15.1 - 16.5 MPG
91 Octane: 17.6 - 18 MPG
93 Octane: 19.3 MPG, I have seen as high as 21 MPG on a fuel conserving highway stretch (no traffic, no stops)

 

[gshadow325]

i dont believe this octane vs mpg debate. i did see results like this when i changed all my O2 sensors in my last truck 03 xc90, jumped 4mpg average from philly to pittsburg, 4 tank full of fuel for comparison

 

[Climb14er]

I get about 18.5 on my 2002 with 207K on it, and thats my commute to work and a little running around town. My commute is down a 55 mph flat road so I think that helps my mileage a little. This is in the middle of summer with no warming up daily. I get about 340 to a tank. I just dont want to jump to the v8 and have my weekly fuel costs rise. i dont need the extra power for towing as we have a diesel pickup. Just see way more V8's out there for sale as well.

I get 19-20 mpg on the hwy in the summer. In the winter, drops to 18 mpg.

In the summer in the city, 17 mpg city driving... if I'm lucky.

In the winter, 15 mpg in the city!

Based on what you said, and you could look up the mpg's in a ton of threads on the forum, you probably be happier in the V6.

Personally, I like the V8... a lot... for many other reasons. :cheers:

 

[coconutpete]

I measured just for fun about a year ago. I get 13. That is because it's a 4,500lb behemoth, shaped like a brick with big fat tires and a 4.7Liter V8. I also have a Flowmaster on it so I tend to drive it around in 4th gear if I don't go on the highway because of how nice it sounds. It's a F@#$234ing joy to drive - it's a beast, but if you are even slightly worried about gas mileage, this isn't the vehicle for you.

If you need to tow a lot, you need a diesel pickup.
If you are considering a V6 instead of the V8 because of gas mileage you should probably look at the "big" prius.

Of course that's just my 2¢

 

[olsen_karl]

The only real difference I've noticed in trying different octane fuels in my V6 is that it decreases with 85 (sold in the West, Idaho and Utah). I didn't notice an increase by going to 91 for a couple tanks. No pinging with 85, just a bit sluggish, and lost some mpg.

 

[awdjunkies]

The only real difference I've noticed in trying different octane fuels in my V6 is that it decreases with 85 (sold in the West, Idaho and Utah). I didn't notice an increase by going to 91 for a couple tanks. No pinging with 85, just a bit sluggish, and lost some mpg.

Hey Karl, where in the heck did you see 85 oct.? and have you tried 93? Ive tried the one on Pyramid/Prater.

 

[olsen_karl]

Hey Karl, where in the heck did you see 85 oct.? and have you tried 93? Ive tried the one on Pyramid/Prater.

85 is out across central and northeastern Nevada, southern Idaho, and all over Utah. Supposedly with higher elevation, you can use lower octane -- but I haven't found that to be the case with the 4Runner.

I don't think I've tried 93 in the 4R. I usually buy gas at Costco (the one off Plumb), since it's on the way to/from work. They only have 87 or 91. I ran a few tanks of 91 through the 4R, but didn't notice much difference, if any.

 

[awdjunkies]

85 is out across central and northeastern Nevada, southern Idaho, and all over Utah. Supposedly with higher elevation, you can use lower octane -- but I haven't found that to be the case with the 4Runner.

I don't think I've tried 93 in the 4R. I usually buy gas at Costco (the one off Plumb), since it's on the way to/from work. They only have 87 or 91. I ran a few tanks of 91 through the 4R, but didn't notice much difference, if any.

Oh gotcha!! .. Yeah, I have gotten gas at Costco(Same location) before, but during the summer months, that place is backed up plenty lol ...

Hmmm.. Interesting to hear about higher elevation and 85.. I may try to get some and test it out like at Tahoe or some place like that...

 

[olsen_karl]

Hmmm.. Interesting to hear about higher elevation and 85.. I may try to get some and test it out like at Tahoe or some place like that...

The odd thing is that you can buy 85 octane all across Utah, at lower elevations than Reno. And it's not sold anywhere around Washoe/ Douglas/ Carson. So I don't know what the reasoning is with it...

 

[awdjunkies]

The odd thing is that you can buy 85 octane all across Utah, at lower elevations than Reno. And it's not sold anywhere around Washoe/ Douglas/ Carson. So I don't know what the reasoning is with it...

Then my test just went out the window lol.. Thanks for the info.. :cheers:

 

[JeffMerr]

I get like 275-285 miles per tank per the computer, and ~ 15mpg (also per the computer). Of course when looking for a V8, you'd want to know if the timing belt has been changed (like on the truck w/ ~134K you were looking at).

275-285? Damn that sounds horrible. I average about 400 a tank in my v6, if I go to the gas light I can get about 430. 80% highway driving though so I'm sure that makes a difference.

 

[nevada]

275-285? Damn that sounds horrible. I average about 400 a tank in my v6, if I go to the gas light I can get about 430. 80% highway driving though so I'm sure that makes a difference.

ive never seen the gas light, but based on what I get when I finally fill up, um guessing I can get 350-370 on a tank. that's all in town.

 

[470SNC]

I get around 310-320 in my GX v8 with around 15.5 mpg average

 

[bpowa]

I get around 310-320 in my GX v8 with around 15.5 mpg average

Odd I had oem tire size and compared the speedometer to my phone gps and it was right on. After I went 265/70/17 it is now 2-3mph lower than my gps.

So what mileage am I actually getting. Im not good at math thats why I push pen and paper for a living.

 

[m85476585]

We get 85 octane here in Colorado, which is generally above 5,000 feet. I may find a way to experiment with that and midgrade to see if there's any difference. The problem is most of my highway driving is in the mountains where 85 is probably enough. Driving around town doesn't give me consistent enough mileage to experiment. Also, it's almost winter and mileage seems to decrease in the winter for some reason, so that makes it harder to test.

If you find 85 octane, make sure you really are at high altitude. I filled up my old car, a Honda Civic with 85.5 in South Dakota since I figured it must be just a slightly lower altitude than I'm used to (it ran great on 85 in Colorado, never tried 87 here). It turns out the area I was driving through was only around 1,500 feet above sea level, and as a result I got my worst-ever mileage in that car: 22mpg highway. The range to empty was a little over 200 miles, which was a problem since gas stations are not frequent out there. The car had no power, and it felt like I was driving up a high altitude mountain pass. It got better after a tank or two of better gas.

 

[TORCH]

city 16mpg, highway 19mpg consistently.

 

[Paisano]

275-285? Damn that sounds horrible. I average about 400 a tank in my v6, if I go to the gas light I can get about 430. 80% highway driving though so I'm sure that makes a difference.

I only go by the CPU - right after fill up my range says 275-285, my wife's V6 says 400 like yours.