What tires did u put on?

Sorry, didn't mean to confuse. I meant total miles before wear? 40k miles? 50k miles?

 

Mello03 - No, you are correct. I started with Dura Tracs but they were pretty noisy so I switched to the KO2 265/75 16. It appears that the mpg has not been affected that much. Here is a snap of my reading after about 60 miles on mostly a flat freeway doing 60-65. Today I am down by a 1/4 tank and still showing on the automatic gauge 20.5 mpg average. However, other guys have reported a 1-1.5 mpg hit. Bigger tires have to hit mileage, just not sure how much.

 

Where are you from? What fuel are you running and is your truck auto or stick?

 

Wow you really did take a hit. My TRD OR is still stock for now but I've been almost completely city driving with the occasional 40 mile round trip on the highway and some local trails and I'm getting at least 385 miles per tank.

 

Hit that's not a hit it's a tko

 

gsxxr OP - I am in Seattle and I use Costco as they are cheaper. The previous picture post was last night from Olympia to Redmond with mostly freeway cruise control on. DC OR v6 Auto Tranny, with two occupants and no extra cargo, dry surface, wind was nil. Tire pressure indicating at 35-37. My fuel mileage drops several indicated instantaneous mpg if I speed up to 70-75 mph or encounter a hill. Also notice when the tranny drops down a gear or two mpg tanks.

 

Definitely is making me rethink the Cooper ST Maxx at 54lbs each and going with some Terra Grappler G2s or C rated KO2s on a 17" wheel.

 

gsxxr OP - Also I am on a stock suspension and to repeat, 265/75 16 KO2. I notice that you have a 3 inch lift with 285 section tires. The lift gives you more "frontal" aerodynamic drag (and wheel spacers add to this if you have them) and the 285's while weighing about the same in the 17 inch wheel size have more "rolling" resistance due to the extra 20 mm of tire width (265 vs 285). That may cause some of your apparent loss in performance. Just my assumptions, I recognize I could be in error.

 

I'm getting 17.5 around town

At 285/70/17(larger overall diameter), it also throws all that reciprocating mass further out from the axis, requiring more work.

 

Thanks man. Ordering tomorrow.

 

I'm getting bout 15-16 city and 18 highway
Being light on the gas

 

Anyone go up a tire size with a stock lift and stock trd wheels? Post some pics if so.

 

What is a stock lift?

 

No lift. Pardon me.

 

What size are the C rated KO2's in 17 inch?

And how much do they weigh compared to the ko2's?

 

265/70/17 is offered in a Load C and Load E. See below for some tire weights.

Stock Goodyear Wrangler with Kevlar, 265/70/16: 42lbs
BFG A/T KO2, 265/70/17 in Load C: 46lbs
BFG A/T KO2, 265/70/17 in Load E: 52lbs
BFG A/T KO2, 265/70/16 in Load E: 50lbs

 

Teeko - Google TireRack and they have specs for many favorite manufacturers...do search by brand...then tire size...then specs...let me know if this works for you...

 

What was the load index number on your OEM tire?
Example: P265/65/17 112T
112 is the load index
What psi does your placard say?

 

I've got KO 2s on my 2016 TRD OR Access Cab, E rated. They offered D, but, eh, go for the gusto (was basically the same price).

I'm averaging about 19MPG mix city/highway here in Santa Cruz and I need to deal with hills most places I go. So, I'm ok with it.

 

One size up on aspect ratio: 265/70/17 on stock Sport wheels. No real difference on MPG. The tires sucked horribly though (Cooper ATP) and they got returned.