Another MPG thread

OK I was concerned with this before I got my wheels and tires.

I bought my car with 265/75's on them and was averaging around 18-20 miles a gallon. I do a lot of mixed driving so some was highway, traffic, and even little stints of off-roading during a tank.

I just put on a lift and got 285/75 and have been looking at about 17-19 miles per gallon. My car has 160,000 miles and I am not sure when all the last service maintence was preformed on it.

I will be changing the oil/filters/fluids during this week.

I am extremely happy with my mileage compared to my brother in law and his jeeps.

Also, mine is a 5 speed which probably helps a lot!
 
I've only gone through a few tanks (got the runner 5/8/10) and do only stop and go in rural Wa. and only get 15mpg. I did pull a code for missfire cyl3. and it was running very rough, changed the plugs this weekend. Plugs for middle cylinders on both banks were in real bad shape (coil pack issue?). Curious to see what my MPG's are gonna be. I am thinking about the motor-vac thing too! With 212,800+ miles I am gonna need every little bit of help I get!
 
ryanr623 said:
I don't know how this is possible, but i've been getting 1-2 mpg better by driving with the ECT on! I've often heard people saying this but never believed it. Well after three tank fills im a believer, and it's not going off anytime soon.

Speaking of this anyone know why you could possibly get better mileage with ECT on?
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I just started driving with ECT on a couple of tanks ago, and so far it has increased my mileage from around 19 (mix hwy/city) to 20.5/21. My guess is that even though it's revving higher when you accelerate, you spend less time accelerating up to cruising speed than you would with the ECT off. Maybe the amount of fuel burned on a short quick acceleration is less than a long slow acceleration to cruising speed. I was also pleasantly surprised :D
 
Running stock here and getting 22-23 mpg Hwy (325 miles/tank) and 18-19 (285 miles/tank). I, too, experienced an increase in mpg when driving with ECT on. At 208K, I'm taking all the advice I can to prolong the life of this Runner and it has made a tremendous difference. It is also a reminder of somethings I need to get done-I am in need of a TB and MAF sensor cleaning.

Brian2sun-showing my ignorance, but what is the IAC you referenced earlier?
 
For thoe seeing better mpg with ect on, what type of driving do you do? I do a ton of stop and go. Going to give it a try as well.

Maxil
 
Maxil said:
For thoe seeing better mpg with ect on, what type of driving do you do? I do a ton of stop and go. Going to give it a try as well.

Maxil
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Mixed driving-combination of city stop/go; state hwy, interstate hwy, and country roads. I find that the engine shifts more consistently and is more responsive with ECT on- I don't consider myself a harsh driver and not a Sunday driver by any means but, when the wife yells: "...punch it Chewie!" I listen.
 
Maxil said:
For thoe seeing better mpg with ect on, what type of driving do you do? I do a ton of stop and go. Going to give it a try as well.

Maxil
Click to expand...

I do about 75% hwy at around 65 mph and 25% city at 35-45 mph, and saw about a 1.5 mpg increase.
 
I average around 15 in town and 16.5 - 17 on the highway, with a lifted and loaded down truck (5200 lbs. +).

There are some of us, obviously, who failed to get the built in tail wind option from the factory.

The lowest I have had was returning from Little Rock, AR... pulling a trailer into a 30mph headwind... 12.8 mpg. The highest I have had was returning from Albuquerque, NM... downhill with a tailwind... 25.6 mpg.
 
I have been getting approx 325-350 on a tank. a mix of driving highway and around town. I have not tried the ect yet, but i will on the next fill. Also wondering does altitude play a factor in mpg?
 
spongerx said:
How fast were you going? Cruise control? Thats really good milage.
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No Cruise Control. Stayed right about 70mph. Not sure if the elevation changes make a difference, but the 4 hour trip from Salt Lake City to Moab is something like this:

4,200 ft > 7,500 ft > 4000 ft.

I drive conservatively, and there was hardly any traffic, but those are real life mpg numbers.
 
i've been tracking my mileage since January using Mileage Meter on my Blackberry and I have averaged 15.7 mpg. My driving is 99% stop and go in town with traffic. I've cleaned the MAF, throttle body, new fuel filter, new plugs and keep my tires inflated properly. It would be nice to squeeze a little more out of it but I don't think it's an option so oh well I'll deal with it because I still love my 4runner. I did the deck plate mod two weekends ago and the first tank showed an average of 16.9 but I'm going to wait a few tanks before I get excited so i can get a good average.
 
Tracking my mileage ever since I could remember. With my 3" lift and my front brush guard I been getting an avg of 19mpg and best mpg at 22.6


Right now Im working on getting mpg reading with my roof basket on
 
last tank i got was just over 18mpg. i have a 42 mile round trip commute everyday with about half highway and half stop and go.

lifted, 31's, roof rack, front bumper.

:driving:
 
went on a trip up to mountains in northern arizona and 90% highway going about 55-60 i was getting 20mpg. thats with air on low and my family and cargo with me. not too bad. get about 16 in city driving. 97 v6 auto, no lift on 31s 2wd
 
Just got some new mpg numbers of my 4runner with the rola basket on the roof. The mpg surprisingly didn't get affected by the roof basket. the last two fuel up with the basket on the roof was 20.1 and 19.2. Which was the avg without the basket. :D
 
I get between 19MPG and 20MPG consistently with about 70% of that highway. Planning on cleaning throttle body and MAF soon to see if I can improve those numbers. (2WD, stock tire size, 4.10's)
 
My stock 2000 4wd V6 gets 17-20 all the time. Never taken it on a long road trip. Just around town, 75% hiway. Its got 101K miles and 265/70/16 Michelin LTX tires. The gas mileage has been better than I expected for this truck.
 
I've had my 4runner for almost a month now and with 3 tanks, I've averaged 19mpg, 18mpg, and the last tank was 20.6mpg with ECT on. About 80% of my driving is highway. Last tank I went 315 miles, 80 of those were with no catalytic converter since someone cut it off. I don't know if that helped or hurt the mileage though. I'm 2wd, auto, with 265/70/16s
 
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