26.2 MPG just by slowing to 55 MPH

You'd have thought right because that's complete BS. There is no shortage of gas in the US and anyone who says so is either lying or stupid.

 

Not "here", yet. Overseas where gas has always been available.

 

Its not considered proven unless real world tests are done and replicated by peers

 

well, i tried doing 55 on the freeway and it did gave me way better mileage, but i also had a couple of cars almost rear ending me, and i was on the lane next to the slow lane. i am in socal and i really find it hard to drive a car at that speed on these freeways.

 

FACT: if your Toyota has the smaller available size say, 245 like mine did (basic model). YOU are not actually get the mileage you think you are measuring by your speed 0..........Because you speed o is reading faster then you are really going. Your truck speed o is calibrated for the larger tires 265 70 16 series as with my truck, newer ones are different but same height!

The sucky part it that your mileage warranty will be up sooner; hence you tires spinning faster!

Hmmmm I have 265 75 16 and my speed o is so close to on, i just call it On.....

 

^Ah, that's been discussed ad nauseum. Every manufacturer has speedo's/odo's that are not 100% accurate but within "tolerance", whatever that may be.

 

I put power wheel tires on my truck and my gas mileage went to crap

 

Ah but if you get enough of them all reading 'too fast' then you gotta wonder

 

Well, if the speedo reads fast; what makes folks automatically think the odo reads fast also? Every vehicle I have owned has had the speedo read faster than true speed, but the odo's have been correct for the factory tire fitted.

Also, a 245/75-16 and a 265/70-16, and a 265/65-17 are for all practical purposes the same height. +/-

 

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The base model wimpy tires are not the same height as the more expensive model Tacoma truck(i can't keep up with all the sizes these days, however, there are different size tires, can we agree?)

Take a GPS (2 different models as I did, and or use the mile markers) your Smaller base size tire will have your SPEED O reading incorrectly(fast) FACT.

This will cause your speed o to rack em up quicker and SHOW you to actually be getting better gas mileage then you are getting.................

NOW if you have the BIGGER stock size tires, your SPEED O will be DEAD On. WHich is GREAT, it mine is damn near dead on, right on up to 110MPH, - a cunt hair, since I went a little bigger then the larger stock tire 265-75-16.

 

right. you cant even get away with going that slow on side streets let alone the INTERSTATE. I get passed when im doin 90.

 

I don't think it is correct for the smaller size tires(base model). And it will show you getting a couple miles per gallon better then you are actually getting......


I would think that Toyota set the Correct Speed o calibration for the Most popular sized tire! The LARGER SIZE tire. Which is like you say above, very close, very very by my two GPS's and using Mile markers.

However the smaller Tacoma stock tire is Off.....I think it was like 5% or so..Don't hold me to that. If anyone really cares PM me and I will go dig the info up somewhere. Or if you have a GPS go check it out. No real big deal to me I thought you guys would want to know...

What bothered me was that I was getting (to me) much worse mileage after putting practicly stock tires on it! SO i started to dig in and this what I Found. Like I said it only matters if you have the smaller stock tire and think you are getting 23 or so mpg, you probably are not, hence my statements..

Now if I could only figure out the header issues I have, i will be good.

Good luck guys!

 

Ok I see your point. ....hmmm I have to give up on this one. I don't have the patients for it now..... You may have something, It only matters to the ones that have the smaller stock tires on them.....................................

SO you guy go out and find out if you care. PM me tomorrow if you need more input.

My gut is that I am correct, but I never bet 100%....I have lost to many times!


Good luck guys!

 

Who said that? How do you know the odometer reads exactly the correct mileage? Test any? The fact remains, these things are rarely 100% accurate whether it's the speedo or the odo, which is what I said in my first post. All manufacturers have this problem.

What cracks me up is that some of you seem to think there's some kind of conspiracy going on with Toyota. I don't but then I don't wear a tin foil hat either.

 

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Conspiracy?, You are preaching to the choir. Manufacturers have an accepted margin of error on speedos, and most choose to make them read a little on the fast side, which for them is the smart way so a customer will not have a complaint such as getting ticketed for something like 2mph over in a school zone or similar, and also to compensate for minor over/under infaltion, tread wear etc, etc. It is difficult for a speedo to be correct 100% of the time, so error on the safe side. The odometer can also have some margin of error, but most manufacturers try to keep it as close to correct as possible. Honda had some problems in the past with fast reading odo's and had to deal with it. That said, all cars/trucks I have had, have had a speedo that read faster than the vehicle is actually going, while the odo has been correct with the factory tires @ proper (+/-) pressure. I know my vehicles do it and have no complaint, and I adjust travel totals and fuel usage by the proper percentages for my computations. That does not mean everyone's will be the same, but what I was trying to get across is that over the years on several web sites, that once someone comes to the conclusion that the speedo is fast, they automatically assume the odo is fast by the same amount since they share the same hole in the dashboard. They are 2 separate instruments in the same housing, fed by a common signal, but either can be calibrated to whatever accuracy level the manufacturer wishes.

 

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WTD; I was not disagreeing with you; as what you are stating is correct. I was just trying to get across to some that they need to not assume that just because they find out the speedo reads fast, does not mean the miles/kilo's are accruing at a higher rate.

 

^Gotcha. The whole thing is annoying, really. I mean, we can come up with all these tech wonders but can't get a speedo/odo that is right on. Of course, there are a lot of factors involved but still, you'd think they would be more accurate.

 

Ok, I finally got to checking my speedometer and it is off , but it is only off by 2.5 MPH. At a steady 55MPH (on speedometer) my gps shows 52.5 MPH. Not sure how much that would affect mpg. Also,yes I have the original 245/75/16 inch tires.