1958 - 275 70 R18 change in mpg

[ryanjl]

Yeah, if these numbers are correct, I'm thinking of bringing mine into the dealer to have them see if something's up.

14 mpg was a dissapointment. Not so much the MPG, but the fact that the fuel tank was made smaller because of the supposed fuel efficiency. My range on the highway was only around 250 miles or so.

 

[manu george]

Not trying to start shit at all, but you’re not getting 23-27 with those. Even over inflated. I don’t care where you live. Must have reset that on a hill and it was a short trip or something. For example, Mine says 30 mpg right now because I reset it at 10’000 feet elevation and went back to 5,000. If I had reset just before going up there it would be 17 at the top. But cool truck! Just don’t want people to get there hopes up

That’s what I thought. I am only getting 20 average with the stock tires on my 1958. I am at almost 2k miles

 

[zulunet]

Did you do the spare tire as well?

If so, did it fit in the wheel well under the vehicle

I have K03 275 in the spare, a very perfect tight fit. 275/70R18. I love these tires so far!

 

[mountaindesert]

I have K03 275 in the spare, a very perfect tight fit. 275/70R18. I love these tires so far!

How much lower does it hang down in the spare area then the OEM tire. Which Land Cruiser do you have.

 

[zulunet]

How much lower does it hang down in the spare area then the OEM tire. Which Land Cruiser do you have.

I have the FE, according to the charts, it sits about .3 lower than the OEM size of 10.7.

Tire Sizes Chart

 

[JoT.]

I’m averaging (with heavy-ish AT tires):
15-17MPG city
19-22MPG 2-lane highway (50-65mph)
17-19MPG interstate (70-85 mph)
45-60MPG down the mountain

This is exactly what mine is getting, in the exact same situations. 18 city
20-22 two lane 50mpg
18-20 @ 70-80 mph
No downhill mountain but any real downhill drive at all 23-26 (which is almost never)
Stock tires at 33psi.

 

[JoT.]

Yeah, if these numbers are correct, I'm thinking of bringing mine into the dealer to have them see if something's up.

14 mpg was a dissapointment. Not so much the MPG, but the fact that the fuel tank was made smaller because of the supposed fuel efficiency. My range on the highway was only around 250 miles or so.

Mine took a while to move off 17 with stock everything. 2500 miles so far with a mix of all conditions-Are you in Eco mode mostly ? And you have reset each fill up the cluster gage and the infotainment center, clear data ?
Each fill up on mine averaging let’s say 19/21 now says 315 to empty- and no I don’t do calculations- just going off all the data the LC shows. 14 mpg seems pretty low..

 

[ryanjl]

Mine took a while to move off 17 with stock everything. 2500 miles so far with a mix of all conditions-Are you in Eco mode mostly ? And you have reset each fill up the cluster gage and the infotainment center, clear data ?
Each fill up on mine averaging let’s say 19/21 now says 315 to empty- and no I don’t do calculations- just going off all the data the LC shows. 14 mpg seems pretty low..

I only drive in eco mode.

Going to Colorado, I reset the trip meter and it was giving me 13.9ish.

Coming back from Colorado, I didn't use the carputer at all but rather manually calculated myself and got in the low 14s.

Stronger headwind going to Colorado. Slight headwind coming home a week later.

Tire PSI was probably a little high: around 39 to 40 psi.

I'm hoping it's something that will improve over time. That said, in retrospect I would have gone with the Toyo AT3s in the same size, which according to specs weigh about 10 lbs less per tire.

 

[JoT.]

I guess I’m in paralysis over which tire to choose. I have it narrowed down, but I am concerned about a decrease in MPG.. I do also get in the infotainment center and I do reset and clear all of the data. It’s just another place to let you kind of look at what’s going on. And headwind is definitely a thing.

 

[Uncle_Spike]

Can't un-see the tiger stripes on that third pic of the KO3... lol

Oh geez I wish you hadnt said that, previously I was hung up on it looking like a chevron on a road sign marking a curve, now I got Tony the tiger stuck in there too! Doh. I couldn't unsee that pattern, had to go with Mickys

On topic .....800 miles on a FE still getting 16mpg 100% city driving rarely get above 50mph oh well just like my trusty ole FJ cruiser.

 

[b407driver]

Oh geez I wish you hadnt said that, previously I was hung up on it looking like a chevron on a road sign marking a curve, now I got Tony the tiger stuck in there too! Doh. I couldn't unsee that pattern, had to go with Mickys

On topic .....800 miles on a FE still getting 16mpg 100% city driving rarely get above 50mph oh well just like my trusty ole FJ cruiser.

Good choice.

See so many of these tires on SR5s around here, I really think many buy them because of their aggressive (now rather feline) look.

 

[D-Train]

Silly question.. but for those of you that mounted 275/70 R18 KO3's on the stock 18's, no rub at all I'm assuming? Since the spare fits, I'm going to guess that's a yes?

Also, from what I'm seeing on the tire websites, they are severe snow rated, correct? Thank you in advance!

 

[dastan360]

Silly question.. but for those of you that mounted 275/70 R18 KO3's on the stock 18's, no rub at all I'm assuming? Since the spare fits, I'm going to guess that's a yes?

Also, from what I'm seeing on the tire websites, they are severe snow rated, correct? Thank you in advance!

No rubs at all and yes the ko3 are 3 peaks rated

 

[Stage7]

Oh geez I wish you hadnt said that, previously I was hung up on it looking like a chevron on a road sign marking a curve, now I got Tony the tiger stuck in there too! Doh. I couldn't unsee that pattern, had to go with Mickys

On topic .....800 miles on a FE still getting 16mpg 100% city driving rarely get above 50mph oh well just like my trusty ole FJ cruiser.

Except you had a gas tank that didn't hold a thimble full of fuel on your FJ. LOL

 

[Roonie]

I get around 19 consistently with almost 5k miles on the odometer.

 

[b407driver]

Silly question.. but for those of you that mounted 275/70 R18 KO3's on the stock 18's, no rub at all I'm assuming? Since the spare fits, I'm going to guess that's a yes?

Also, from what I'm seeing on the tire websites, they are severe snow rated, correct? Thank you in advance!

285/70r18s do not rub under any condition (I have Toyo Open Country, not one of the 'smaller' 285s), so 275s certainly won't.

 

[D-Train]

285/70r18s do not rub under any condition (I have Toyo Open Country, not one of the 'smaller' 285s), so 275s certainly won't.

I think I'm aiming for the 'Unicorn' set-up. Aftermarket 18" rims, that I can run a larger 33-ish tire (no rub/minimal mod if so), set-up on a C rated AT 3 peak tire. Oh, and they have to be equal to or less than (or real close if over) stock set-up weight.

 

[b407driver]

I think I'm aiming for the 'Unicorn' set-up. Aftermarket 18" rims, that I can run a larger 33-ish tire (no rub/minimal mod if so), set-up on a C rated AT 3 peak tire. Oh, and they have to be equal to or less than (or real close if over) stock set-up weight.

Good luck with that last part. If you find that tire, let us all know!

 

[D-Train]

Good luck with that last part. If you find that tire, let us all know!

I know, right? I'm not in a rush, looking for spring of next year to do it along with a westcott front leveler.

 

[Stage7]

I think I'm aiming for the 'Unicorn' set-up. Aftermarket 18" rims, that I can run a larger 33-ish tire (no rub/minimal mod if so), set-up on a C rated AT 3 peak tire. Oh, and they have to be equal to or less than (or real close if over) stock set-up weight.

That'll be a tough one to find as the stock Michelin LTX Trail is only 37 lbs.
The two C load tires I found in 265/70r18 or 42 and 44 lbs.
There is a stock size 32.6" SL load Toyo Open Country A/T III that is 44 lbs.

https://www.tirerack.com/tires/tires.jsp?tireMake=Toyo&tireModel=Open+Country+A%2FT+III&partnum=67TR8OCAT3&vehicleSearch=false&fromCompare1=yes

The only 33x11.5 tire I can find is Nitto Recon Grappler but it's an E load and weighs 56 lbs. Almost 20 pounds more than stock tire.