265/75r16 mileage and wear and tear?

*Ignoramus Alert!

I know there's a ton of threads but...

I really like my stock tires on my 2020 Off road which are the Wrangler All-Terrain Adventures with Kevlar. I have 63K miles and they have worn great but don't want to be on them this winter.

would like to replace with same but no longer made as 265/70r16 but can get them as 265/75r16.

If i bump up to 75s..

How exactly will this effect my mileage?

I realize the speedometer will be off does that mean the odometer is off too? Can this be accounted/adjusted for so that both speedometer and odometer are true/accurate?

Does the larger/heavier tire cause more wear and tear on drivetrain? I like to drive my vehicles to the bitter end.

 

Wrangler All-Terrain Adventures with Kevlar in 265/70r16 is still available at Discount tire, but shows on backorder.


Mr. Discount Tire monitors this forum and will most likely chime chime in and help you out.

Good Luck

 

The speedometer is actually off on the stock tires and becomes accurate on the 1” larger tires. The odometer is accurate on the small tires and becomes off (reporting less than actual) miles on the 1” larger tires. You can buy a calibrator to adjust the speed signal that the gauge sees, but there’s no reason to do that.

If it makes you feel any better, the factory programs the trucks the same (TRD PROs come with the larger tires) regardless of what size they come with. It’s a happy medium calibration.

I’d expect mpg to suffer by 1-2 mpg at worst.

and I’m not sure where any of this is coming from. You can still get all terrain adventure in 265/70R16.

 

I appreciate the responses but I’ve talked with a Goodyear dealer and Discount Tire and they are discontinued in that size.

 

My bad, I see now. I didn’t fully click on the tire listings. Once I did both versions of SL and C were discontinued. The larger size won’t be much of a detriment, if any. Many people switch sizes and don’t find any downsides.

 

I have the SL 265 75 16 kevlar tires on my truck right now, they are fine. The Yokohama G015 is a good choice too. Would get the michelins but I don't think they make them in that size anymore.

 

265x75x16 on my truck for 10k Mile's. Speedometer is accurate according to local radar and I have not noticed any mpg difference. No rubbing either.

 

265 75 16 toyo open countries. Need to replace pretty soon. Will go with either Falken wildpeaks or Goodyear Duratracs

 

I have been running 265/75/16 General Grabber ATX tires for about 15K now and I love them.

That minimal of a size change won’t negatively affect the truck at all. I have an SR5 so my stock tire size was the silly little 245 highway terrain Toyo’s. The Grabbers make the truck much safer in wet (and dry) conditions.

 

Just double checked with Goodyear for good measure, the 265/70R-16 is discontinued.

As mentioned, you'll likely see a small penalty in MPG moving up to the 75 series aspect ratio.

 

Is it necessary to replace the spare as well or is it ok to just leave it the stock size when you upsize to the 265/75-16?

 

As long as you install the different sized spare on the front axle, it will be fine. Don’t install it on a rear axle since the difference in height can do damage to differentials.

 

OEM lift, 265/75/16 Nitto Ridge Grapplers

 

My Nokian Outpost AT 265/75r16 116T tires arrived today. They look really good! Weighed in at 43 lbs. Together with my FSW 16x8 wheels I'm right at the 63 lbs. per corner of the stock steelie and Le2 245 combined weights. Can't wait to get these bad boys installed. Will be interesting to see what MPG hit I get , if at all, seeing that weight is a wash from stock. Will post updates.

 

Who makes the largest diameter 265/75r16? Seems like they vary quite a bit across manufacturers

 

Pretty sure they are all about 31.5 to 31.7 - small variation depending on 'tred'.

 

I've had 265/75/16's on my truck for years. Even with the 53 lb E rated versions there was no difference in fuel mileage. The speedometer is closer to accurate with the bigger tires on my truck. At most you'll be "different" by about 2 mph at 70 and even less at slower speeds. In my case I'm dead on with bigger tires. I was about 2 mph slow with factory tires.

Remember, your tires get smaller as you wear them down. The 265/75's will be about 1" taller than stock when new. But by the time you get 40,000 miles on them they will be the same diameter as your stock tires. Even if you could re-calibrate the speedometer, it will be off again as your tires wear.

There are minor differences. Tires with aggressive mud treads tend to be slightly bigger in diameter than street or AT tires. LT tires, especially E rated tires tend to be slightly larger too within the same size. But we're talking about 1/4" in most cases, no more than 1/2". Not enough to change much. Some tire chains designed for P rated tires won't fit the same size in an E rated tire, but that is the only issue I've ever encountered.

 

For what it's worth my speedo read a couple of mph high at 70 mph from the day my 2022 SR5 4x4 left the lot with stock 245/75/16's. Within a few weeks of buying it I came across a screaming deal on a set of steelies with 265/75/16's on them so I scooped them up for the winter. Speedo was damn near dead on with the bigger tires. I've read Toyota calibrated the speedo to read high so that the odometer read high and it'd look like the fuel economy was a little that it actually was.

 

I run 33-35 on the road and 20psi off road.

 

I wanted to pop in on this thread and say that I can confirm the last few posts about the speedometer being correct with an upsize to 265/75/16 tires.

My truck came stock with 245/75/16’s. I upgraded to 265/75/16 and the speedometer is now dead accurate.

I didn’t do any calibrating so it was obviously calibrated for 265’s at the factory despite the fact that it came with 245’s.

Pics for fun. 265/75/16 General Grabber ATX.