[Boaz]

I checked my MPG today and it was a whole 16.5 mpg. Mostly highway, some city driving. I want to compare to your alls average MPG. post up please!

[tkr128]

I've only managed to get slightly over 24 a few times so I put in mine for 22-24.

Current Mileage: 31,000
Fuel: 91 premium
Oil: M1 Synthetic 5W-30
Tire PSI: 32
Driving Style: Relatively conservative with occasional "outbursts" when somebody pisses me off. I'm usually driving around 60-70mph
Driving: 95% highway with my commute being 100 miles round trip.
Last 3 fill ups: 23.06, 24.63, 22.65

Here are my findings: My mileage increased a bit after 20,000 miles. You get the best mileage driving at 50-55 mph and mileage decreases rapidly past 70mph. The bug deflector helped the mileage slightly.

EDIT: I edited to include some more info about the way I drive.

[Bosconian]

Since I bought my 4runner in Dec, I'm averaging 19-21mpg. I do mostly 85% hwy driving(I average 2500-3000 miles a month). I've also noticed that if I use regular grade, my mpg drop about 1-2 mpg. I stay with premium and with the better gas mileage, I end up paying half of the difference in cost. Cruising at 70mph also makes a big difference.

[irwinSR5]

why is it that some people get 24mpg and others (like me) get around 16.5?

I realize that the way you drive as well as the speeds (roads) you are driving on make a difference, but 7.5 mpg difference?!

[Hank]

'04 V6 Ltd 4x4 (mpg specs are for 2wd mode, I only put it in 4HI in bad weather)

Driving style: 75% aggressive; 25% moderate
Average highway speed: 80-90mph
Fuel: premium 91
Oil: synthetic (M1)
Daily commute: 95% highway, 5% city (usually 150miles to 250miles daily; 3,500 to 4000 miles monthly).

here's several scenarios/setups that I've encountered:

1) stock from dealer (dunlops @ 32psi): 20-20.5mpg
2) stock from dealer (tires @ 40psi front; 38psi rear): 21mpg
3) addition of Yakima Megawarrior basket w/extensions (tires @ 32psi): 16mpg (way too much drag, especially at higher speeds)
4) addition of Sunroof Wind Deflector (improves aerodynamics & noise levels of the installed Megawarrior basket) tires @ 32psi: 17.5mpg
5) addition of sunroof wind deflector (same as #4, but tires @ 40psi front & 38psi rear): I will soon find out after several fill up

my current configuration is #5

all mpg figures are hand calculated, display readout is usually 1.5-2mpg higher. I usually refill the tank when there's 1/4 to 1/8 of a tank remaining.

future setup #6) add on the front hood protector/deflector, may improve aerodynamics a bit

[2K34R]

In the city, my best doing 50 -55mph, and not rev over 2k rpm I have gotten 18.4 mpg

Revving over 2k rpm and driving about 60, 16.4 - 17.8 mpg

On the highway, my best milage is always holding steady at 70 mph.

[Hitman]

I average about 18 miles per gallon, but that's with about 75% stop-and-go driving on backroads.

On a long highway trip, I average about 22 miles per gallon. I could probably bring that up a little, but I tend to mash the pedal once in a while

[Hitman]

Originally posted by irwinSR5
why is it that some people get 24mpg and others (like me) get around 16.5?

I realize that the way you drive as well as the speeds (roads) you are driving on make a difference, but 7.5 mpg difference?!

Well, I'll tell you one thing for sure-- all these people that changed their tire size to 265/70-17 do not get accurate mileage figures because their tires are 1 inch taller than stock.

That's enough to make a fairly significant difference in mileage figures....

[4RunningGuy]

I have about 2500 miles and use 91 octane and only get about 17 miles to the gallon. I do both highway and city driving and I'm pretty easy on the pedal. But I think the thing that affects my mpg the most is I usually warm up my 4runner for 5 minutes.

[Boaz]

Originally posted by Hitman
Well, I'll tell you one thing for sure-- all these people that changed their tire size to 265/70-17 do not get accurate mileage figures because their tires are 1 inch taller than stock.

That's enough to make a fairly significant difference in mileage figures....

so would that make the milage "appear" on paper better or worse? I just cant understand why there is such a gap in our mileage. I will play with tire pressure to see if that does anything.

I just ran some injector cleaner through as well as a take of premium. I only have 18,500 on the clock , so maybe Im starting to get her broke in ..... i dunno, i just expected a little better mileage.

[4RNR4BB]

I usually get between 15 and 16, mostly around town driving. On the road trip from San Diego to Reno, I averaged about 23 MPG.

Why are you guys filling up with 91 octane?

Matt

[<<<<]

20 mpg here always (mixed driving). Interesting observation though: lack of fifth gear means drop in gas milage at speeds over 75 mph, bomer...

[Boaz]

20 mpg here always (mixed driving). Interesting observation though: lack of fifth gear means drop in gas milage at speeds over 75 mph, bomer...

I didnt think about that, all 2004 V6's have the 4 speed auto right?

[Hitman]

Originally posted by Boaz
so would that make the milage "appear" on paper better or worse?

The stock tires (265/65-17) do 660 revolutions per mile (circumference is 96 inches)

The tires that a lot of people here are running (265/70-17) do 638 revolutions per mile (circumference is 99.3 inches)

This will make the speedometer/odometer 3.4% too slow, due to the larger tires.

If a full tank of gas lasts for, say 300 miles, the difference in revolutions between these two tires sizes is 6,600 for just that one tank of gas !!

[vandert]

Right at 17.

Best was on a recent trip averaging about 90 - 95 mph and I got 21.7 there, through the mountains.

When I was still in the states I got 24 on a trip averaging about 70 from Cocoa Beach Florida to Louisiana, it was about 2100 miles round trip.

I'm adding the Gen 2 FIPK and every time I've had it on a vehicle before it has added at least 1mpg in the city and 2-3 on the highway trips, can't wait to add it

T