Tire Pressure...46 PSI!?

Each tire brand and size require different pressures. Unless your OEM tires are LT, I don't see running any Highway tires at 40 psi. Even with LT, I run 34 fronts and 32 rears and I experimented with the chalk test at various psi.

 

wow, the DC trucks only have a 1040 lb payload? 5 200 lb dudes, and you're at the limit, forget the cooler of beer..

 

If I ran my LT tires at 46 psi, I will get better mileage and stiffer ride and would also need new tires soon due to cupping. I wonder if you followed this and needed new tires that Toyota would have to reimburse you due to their recommendation.

 

That's why I only load 100 lbs girls so I can still have my beer.

 

I run my LT265/75R16 KO2s (Load E) at 46. No cupping.

 

How long have you been running them at this psi? After doing the chalk test with our 4runner which is a little heavier than the Tacoma, I run 42 fronts and 40 rear with the K02's 275/70R17 in E load.

 

20K miles so far. There are some chunks out of them, but that happened at much lower pressures.

 

I really liked KO2's myself but I'm waiting until they release 265/75R16 in D load.

 

the only significant difference between a D and E load tire is the max PSI the tire is rated for. if you inflate it for the load of your tacoma, its all the same difference.

 

I believe E is ten ply and D is 8. I'm currently running Duratrax C load which is 6. People think there isn't much difference in weight but you can feel the difference in acceleration and mpg.

 

except, those old 'ply' ratings were for bias ply... radials tend to ahve far fewer actual plies than said ratings. my "E" KO2's say "sidewalls: 3 polyester plys"

Tirerack.com says a KO2 LT265/70R16 "E" is 50 lbs. there is no "D" in that size, but a LT275/70R16 "D" is also 50 lbs.

 

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I run 35 PSI on stock tires ... Front & Rear ... and mileage went up a little ... 46 PSI seems very high for stock tires.
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You're talking about sidewall ply which is 3. Tread ply is 10. The tread ply count is what determines the load rating. Currently 265/75R16 only come in E's. I'm waiting to see if they come out with C/D as I feel E is too stiff. Just a matter of preference.

 

If your stock tires are P rather than LT, 46 PSI would exceed the maximum pressure listed on the sidewall of the tire. Never do that.

 

same KO2 "E", "tread plys: 3 poly + 2 steel + 1 nylon". thats, um, 6. and I'm pretty sure thats the same 3 poly as the sidewall

 

I'm talking about load rating here and not actual ply count. The actual C/D/E indicates load rating and E being made of stiffer material thus allowing to have higher psi rating.

 

I have the same sticker and stock Bridgestone Duelers so I run exactly at 29, or maybe 30 when I feel like being a little wild.

 

I called BFG after I got KO2's to ask them what they recommend as far as psi. They told my 50psi for my load range C 265/70/17's. I wanted to double check so I also emailed them and they emailed back the next day, guess what, they told me 50 psi again.

It is obvious that Toyota put that sticker on because of the LT tires that came on the truck originally. Plain and simple, LT tires run more psi than P rated tires.

 

I run 45 in my Nitto LT tires.

 

yep, that is the sticker you get with a Baja that has BFG ATs load range D