Nitto Terra Grapplers G2 tire pressure recommendation

Just put a set of 285/55/20 Nitto Terra Grapplers G2 on my 2018 Tundra. I've got less than 3 miles on them.
I looked at the pressure quick and Discount Tire put them at 35 on the front and 40 on the rears.

Based on searches that seems to be a little low, at least on the fronts. What are you guys running these tires at?

I'm mostly on the road, don't tow. Only occasionally on dirt/gravel roads. Pretty much my commuter vehicle.

Thanks.

 

Thinking those are an e rated tire, 40-43 psi cold is a good starting point.

 

I was told they run lower pressure than other brand tires. I think we ran 35-38 in the last set

 

When a tundra comes with that size as a port installed option (Texas Edition, TRD, etc..) the door placard calls for 49PSI.
So, that’s what I’d recommend.

 

Thanks for the feedback guys!

 

I say start at 40 psi and go from there.

 

Just got a response from Nitto:

Thank you for the information.

Regarding your inquiry, based on the vehicle information you provided, the recommended replacement psi for the Tires is 40 psi for front and 47 psi for the rear tires.

(NOTE: Although the email indicates a “noreply” email address, function for correspondence is available and photos or documents can also be added as attachments.)

Thank you,

Nitto Technical Services Department


Nitto Tire U.S.A

Fueled by Enthusiasts

 

Think it through. Why would the psi he higher in the rear than front on an empty pickup....that makes zero sense

 

To compensate for payload and tongue weight.
They’re giving him specs for minimum pressure to handle full GVWR. They can’t/ won’t tell him to put 40 in the rear. If so he would have a higher likelihood of tire failure while fully loaded.

 

I get that. But 90% of tundra owners drive around with an empty bed 90% of the time.

 

You are going to want about 45-47psi front/rear and then go from there. That will give you about 2200lbs of support per tire for the psi inflation which is pretty close to the stock 275/55/20 @ 30-32psi give or take.

https://www.toyotires.com/media/2125/application_of_load_inflation_tables_20170203.pdf

 

After dinner, I put 40 in the fronts and 44s in the rears, but haven't driven it yet. I'll adjust more. Expect it'll feel different than 35/40. I'll see how it feels today. I'm amazed how the numbers vary. Thanks for the input, we'll see how it goes.

 

Slightly embarrassing, but I didn’t know until a couple of days ago that PSI recommendation was on that placard. I only found out because I was checking the pressure in my daughter’s Tundra. I googled for psi recommendation and read that.

So, the psi on the placard is really what I should go by?

 

I've had 275/60/20 Terra Grappler G2's on my Tundra since new. Did a bit of air pressure "searching" when it was new. Settled in at 44 or 45 front and rear. The wear has been even across the 275mm's of tread during their 54,000 miles of life. Mine is 4X4.

 

All in all, yes.
If you want to drop it by a few to potentially help ride quality just make sure to reset the baseline TPMS setting and know that max payload is reduced.

 

Greetings …. just found this post and forum hoping to get some input on this since the post is somewhat dated. I just got a new set of Nitto Terra Grapplers G2 305 55 20 XL size from Discount Tire yesterday for my supercharged Tundra 2WD Crew Cab. I asked the rep what they recommend and he stated 35 PSI, unless you are going to be doing a lot of towing. The old set got just over 42,000 out of them until excessive wear got to the them on both outer edges especially on the fronts which were bald. Since it wore like that I do not think it is an alignment issue with toe in. I definitely ran them down to the wear bars, so they probably should have come off sooner. I kept those at 35 PSI also and rotated them around every 8k miles around every synthetic oil change. So I am a bit baffled as to why they didn't last to their rated 65,000 miles and most of all why there was a uneven wear pattern. I'd like to try and get better life out of these. I mostly drive on paved roads in town with an empty bed and have never towed. I've read about the "chalk test" and may try that; but I'm interested in what folks are running in similar situations. Have y'all got ever got those kind of miles out of a set? What tire pressures would you recommend and rotation frequency? Thanks!

 

I'm on my 2nd set of Terra Grappler G2's. My first set wore great. Even wear when I took them off at 63,000 miles. As I noted above over two years I ran that first set, and am running this 2nd set at 44 psi on all four tires.

I would tell you that the 35 psi "recommendation" is one that dates back 25 years. I ran all of my vehicles at 35, including my 1997 T100 4WD truck, and their tires wore great. I started my Tundra at that and notices at 5k miles that the outer edge just didn't look to be wearing right. So I upped the pressure after doing some "consulting" on that thar internet thing. 44 has proven to be juuuuust right.

Good luck.

EDIT: here's a picture. 17,000 miles. 44 psi.

 

I agree. I run these on my Tacoma. When I first put them on, I ran them at 35 and they felt odd. Almost sluggish and felt kind of a sway when turning. bumped them up to 40 and they felt perfect. They do get to 42/43 in summer time driving for a while. they do feel a little more stiff in a bounce but steering feels tight (which I want and like) for control.

 

Thanks for the quick replies and picture! I'm going to try this, your tire wear looks uniform and great compared to the one's I just replaced. I just finished airing them up from 35 to 42 PSI cold.