Edionne13

So I see people with the 3.slow and with some pretty decent size tires. They're getting better gas mileage than me I get about 13-14. I can only go 250 exactly before I run out (don't ask) I run 33x12.5 and 4inch suspension 4.10 gears is there anything I could do to increase gas mileage? Buddy of mine with 22re SAS 36's got 20 the other day :/ lucky

Gamefreakgc

Cat-back exhaust system. larger piping and better muffler alows air to flow better, meaning better MPG's. Mine went up about 20% (14.5 to 17) with that alone. The gas savings has paid itself off already.

kawazx636

iTrader: (3)

I find it pretty hard to believe that a 22RE with 36's gets 20mpg. I'd check his math if I were you - I'd say he's getting 12-15 at the very most even with it re-geared. Some model 4 cylinder trucks don't even get that fuel economy with factory tires. My friend has a 22RE that I personally rebuilt for him that gets 18mpg with 33's and he drives it like a granny. Before I started my restoration, my 22R was getting 16-18 mpg with 31's. Like Gamefreakgc said, better airflow will help, but your tire selection is going have a huge role in fuel economy.

Stetson_md

Single best way to gain mpgs is to adjust your driving style

Edionne13

If I drive granny I still get 250 on tank. I don't want to regear since sas is near future. I usually shift at about 4 grand

Edionne13

I'm straight piped 2 1/2 I believe is what's under. I've thought of putting flowmaster a super 40 or 44

Gamefreakgc

Flowmaster and Magnaflow are solid brands for our trucks and are way better than the stock muffler (especially since they are about 25 years old).

I normally shift at around 2.5k to 3k RPMs... but I'm not sure if a 22 can do that without people honking at you to speed up. In my truck I can keep up with traffic shifting at those RPMs, if I'm pushing 4k then I'm passing people.

EDIT: Just realized you have a 3.0. You definitely shouldn't have to run it up to 4k RPMs, see the regearing post below.

SPARKS89

iTrader: (1)

Upgrade your exhaust for better flow. Regear to either 4.56's or 4.88's with the 33" tires. The 4.10 gears are causing the engine to have to work harder than it should to turn the bigger tires. You'll have higher RPM's with the 4.56's or 4.88's, but you won't be working the engine as hard so you can put less throttle into it to get the same effect you're getting now. You'll be utilizing the efficiency of the powerband of the engine and using it to your advantage rather than fighting it with the wrong gears. Plus your speedometer and odometer will be back closer to stock numbers again (I think 4.88 gears will put you just about dead-on with stock figures).

Stetson_md

Driving like a granny just pisses of tailgaters dosent really help with your mpgs. Once you get to you desiered speed upshift till you can just barely keep your current speed
You can also coast like a hybrid hippie (put it in neutral kill the engine coast till your about 15mph under the speed limit then put it in gear and pop the clutch to start the motor accelerate and repeat) Google will help you find other things you could do

ToyotaDude

Where I live we have hills for days! High mileage in Toyota 4x4's here is a mythical creature. Ive had a little variety to, and Im the grandma driver of my friends. Heres some of my averages.

86 Std Cab 4x4 22R 5-Speed w31's - 13/19
90 2WD 4Runner 3.0 Auto w28's - 13/19
94 2WD ExCab 22RE Auto - 17city (never hit hwy)
90 2WD Std Cab 22R 4Speed - 24city (never hit hwy)
85 2WD Std Cab 21R 4Speed - 12/16

Now I currently own my 87 Runner which I swapped in a 7MGE with 35's and 4.88 gears I average about the same mileage as my old 4x4. One of the cons of a valley!

bone collector

manual hub swap, advance your timing and use premium fuel, re-gear, egr delete, adjust your driving style, afm adjustment, or 7mge afm swap.

I get 17 plus mpg driving like a race car and I drive more the 60 % in the city

Edionne13

Air flow meter adjust to what two clicks forward and two clicks back

bone collector

oh and change your fuel filter and use some injector cleaner. and how old are your o2 sensors? here is a link about afm adjustment:
https://www.yotatech.com/forums/f116...stment-203287/

read ALL of this one. pay attention to post #142 on page 8
https://www.yotatech.com/forums/f116...22/index8.html

this one is probably most important:
https://www.yotatech.com/forums/f116...k-3vze-187741/

91 4Runner

Re-gear to 4.88's then once you SAS sell the front differential to fund another set of 4.88's for the solid axle. ISR mod, manual hubs (if you don`t already have them), fresh tune up, free flowing exhaust. 7mg VAFM, upgrade your injectors, better fuel and keep your foot out of it!

That`s about it!

4runnertank89

You have to also remember that aerodynamics help too. Something like a full skidplate that is in the front would help. And maybe even one that goes underneath as well. First thing I noticed after I put my suspension lift on was how damn slow it was on the highway! This was with the same tires that were on it before the lift (so all that changed was the height.

Once you put a suspension lift on these things it's like a giant wall pushing air.

I'm putting 2 skidplates on mine very soon.

highonpottery

iTrader: (1)

while everyone's suggesting all these things to fix or put on your rig, i'm going to start at the obvious question that nobody's asked yet....are you adjusting your MPG calculations for the larger tires on stock gears??? A 33" is almost 18% difference in tire size over stock 28" tire --- as in, if you're seeing 250 miles on the ODO, you're actually traveling around 295 miles and are getting at least 16mpg, which is not bad for your setup.

SPARKS89

iTrader: (1)

Good catch!

NickMiller

I think you'd be surprised how much this is actually overlooked...

Edionne13

Mother of god he's right..

bone collector

Yes you will need to calculate the mileage for the difference in your tires, this can account for some of your poor mileage. Doesn't mean some of the suggestions above are worthless.