Tire Pressure BFG E Load 265/70/17

I really like this site, however, sometimes I cannot get a straight answer after combing through hundreds of posts. It seems like harsh comments, criticisms, and insults dominate the responses.
Here is what I am trying to figure out - the best PSI for my situation.
I have a 2007 TRD Sport LB with BFG KO2 265/70/17 E Load. I do mostly highway and on road mountain driving. I have gotten suggestions in the past from 30 PSI all the way to 55PSI. Please don't tell me to look in the door jamb.
If anyone, without insults or the need to feel better about themselves for putting others down when they have a question, can help me out I would most appreciate it and thank you in advance!

 

Try messaging the tire manufacturer through Facebook messenger or email or contact customer service. Unfortunately 265/70/ 17 is not the stock tire size. You can also try the chalk method. Plenty of videos on youtube or us the search here on TW

 

Thanks. I appreciate the reply. The manufacturer says max 80 PSI. Another poster on TW posted that info. For legal purposes, BFG will not make recommendations.

 

35psi seems to work well for me...recommended by a few tire dealers.

 

Is this your first day on the internet?
Straight answers to your questions are subjective and based on individuals' experience, which can vary greatly. I think for off-roading, most will air down to high 20s. For most road driving, I wouldn't go below 32. First set of BFG KOs I had were on a 1990 Ford Ranger, I found that if I kept pressure at around 50, there were no adverse handling characteristics and I got over 50k miles out of them. That's what sold me on the BFGs. I've since had them on a 2006 Taco PreRunner (multiple sets) and recently put them on my 2020 Taco SR. IMO, these tires offer great flexibility and are not temperamental about pressures.
I think if most of your driving is highway, I would be comfortable anywhere from 36 up to 50. If you want confidence and more grip in the mountain driving that you do, I would go between 32 and 38. If you want to set it and forget it (my usual method), set them at 35 and drive. Check the wear after a few thousand miles, if they wear more on the edges, increase the pressure, if they wear in the center, decrease the pressure.
It will be interesting to see the comments that follow... No wrong answers, just different experiences.
Cheers.

 

I've found sources that say not to run E loads at less than 35psi, that said, I did the chalk test, ultimately the best method to determine contact patch with your unique weight alignment tire and wheel set up, and ended with 33psi front 31psi rear, this was before my rear plate bumper though. Haven't rechalked but I have been running 33 and 33.

 

Thank you. @roadking1 What type of driving do you typically do?

 

Thanks. I don't doubt personal experience as well as personal preference plays into it. The fact that the "internet" is plagued is the problem, but TW doesn't need to be. I appreciate your input

 

Thanks for the info, seems like that's in line with what the others are posting. I appreciate the response and detail

 

There is no safe haven. I do find this forum to be more cordial than others. Dare I say, more mature?

 

You have no idea what you are talking about and should not be giving advice.

 

To avoid the myriad PSI suggestions, you can do a chalk test and get it set for your situation. A quick duckduckgo search will explain it quick

 

29-30psi in the winter, 35psi in the summer. 40psi on rear tires when hauling big or towing.

 

I have 275/70/r17 BFG KO2s in E rating. I run 45psi all the way around in mine. I did the chalk test multiple times and gas mileage checks with multiple different pressures. I found that 45 psi gives me the best ride and best mileage of all the pressures I ran. My tires have about 30,000 miles on them now and are wearing very even.

 

I take it that you’re heavily armored?

 

No armor. I do have a shell.

 

If you do the chalk test, bracket it with a nice 5 psi difference on either end and post up some pictures. I'm really curious how accurate it is with modern tires, they're much stiffer than their ancestors.

Other than that, the doorjamb is probably the best starting point. The sidewall pressure is for the tire, not for the vehicle and is simply stating the max psi the tire will safely manage - not what is best for your weight.

 

Depends on driving conditions, weight, driving style, what you're driving on, etc.

Despite the fact that tires are the single most important and most complex component of a vehicle's suspension, they are such a ubiquitous item on vehicles that every single person has their own opinion on them (and many miss the mark).

To really get the "correct" answer, you would need tire data, which the manufacturers have, but obviously won't give to you. The second (realistic) best is getting a recommendation from the manufacturer after telling them about your specific application. The third (realistic) best in my book, is to do the chalk test, see how you like the feel under different conditions, monitor tire wear, and adjust as necessary.

 

80 PSI is for max loads on a truck with a 10,000+ lb GVWR. The wheels on your truck are only rated for 60 PSI. An unloaded 3/4 ton truck is around 7000 lbs and most of those guys run 50-60 PSI for normal driving and only go up to 80 PSI if loaded to the max. Everyone that I know who is using E rated tires on light duty trucks runs them at 30-35 PSI. I keep the ones on my Tacoma at 30 PSI, my F150 at 35 PSI.

Generally speaking the suggested PSI on the label on the drivers door jamb is a good place to start regardless of the tires. Which is about 30 PSI for best ride with P rated factory tires. The P rated tires that came on my truck were stamped 44 PSI for max loads. Since I don't always know when I'll be carrying loads I kept my P series tires at about 38 PSI all the time. The E rated tires @ 30 PSI handle the weight better and ride isn't significantly impacted.

 

@Fojo this might help get you going in the right direction.
https://toyotires-1524598101.netdna...ication_of_load_inflation_tables_20151020.pdf