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gaijin
GOLD Star
Please tell us the exact size tire you have (e.g. LT285/70R17) and I'll tell you the recommended Cold Tire Inflation Pressure.
HTH
Some folks here have said it should be run at 42. Mine are at 40 and they still feel relatively soft.
gaijin
GOLD Star
If you are running LT285/70R17 tires, you might find this thread interesting: Tire Pressure for Rock Warriors with LT285/70/17, Load range Es?
HTH
HTH
gaijin
GOLD Star
Just out of curiosity, on what do you base your recommendation when we don't even know the tire size?
gaijin
GOLD Star
The "Book" says your Recommended Cold Tire Inflation Pressure for those tires is 46psi F/R.
HTH
gaijin
GOLD Star
Maybe something was lost in translation, or I had a brain fart ... who knows? But the Recommended Cold Tire Inflation Pressure for LT285/65R18 E-Rated tires on a LC200 is 42psi F/R.
Sorry if I am the cause of any confusion.
HTH
gaijin
GOLD Star
FYI, the absolute MINIMUM Recommended Cold Tire Inflation Pressure for your LT285/60R18 tires on ANY vehicle is 35psi - the 33psi you are running is dangerously LOW.
My recommendation - per above - is a Cold Tire Inflation Pressure of 46psi Front/Rear.
HTH
Markuson
SILVER Star
Gaijin, AKA "PSI
"I wish you had your own column on the wheel and tire size database...where you could list the proper cold inflation values next to each tire listed by 200-ers there. Thinking it might save you oh...say roughly 5,738 answer-posts a year? 
gaijin
GOLD Star
Gaijin, AKA "PSI
Come on, man - I've only posted 1,115 times since joining this forum in 2012 ... but I appreciate your thought.
Anyway, I still prefer the personal touch. It really is no burden to answer individual requests.
Markuson
SILVER Star
Ya...
That was just my silly way of appreciating your efforts. It's a niche expertise, and we need it!
Argh! I would swear you landed on 40. But no worries. That is why I carry a ViAir compressor.
While we're on the topic of different sizes of KO2s: What are the real-world pros and cons of the various sizes now available for the stock 18 rims? Looks like there are a couple varieties of 275s and 285s each that fit, but what would be the strongest reason from varying from the stock 285/60R18? Increased diameter, or something else?
gaijin
GOLD Star
Do I get any hints, or are you going to make me guess?
Are these tires LT-Rated or P-Rated?
Putting them on a LC200?
That'll do for a start.
HTH
@gaijin , Since you noted you like the personal touch, I hope you don't mind another one! Michelin Defender LTX P275/65-18 on a 200. I've been treating these the same as the stock tires, but they are one size larger in aspect ratio and I'll be towing this spring with 450-500 lbs of tongue weight. Thanks.
