Toyota Tundra Discussion Forum banner
1 - 20 of 58 Posts

·
Registered
Joined
·
205 Posts
Discussion Starter · #1 · (Edited)
for those guys with load range E tires what tire pressure are you running??

I got some good year wrangerls with silent armor progrades about 2 weeks ago and I still havnt found a solid base line tire pressure to be running them at. I started at 45psi in the front and 50 in the back. With recent rains although this are great winter tires I havnt been able to keep decent tractions from a stand still. I know this inpart the nature of a pickup with a light rear end. But I am just wondering what PSI you guys with load range E tires are using. Thanks
 

·
Registered
Joined
·
2,270 Posts
42/44 I have Nitto Terra Grapplers. Took several times of inflating/deflating and test drives until I found what I liked.
 

·
"Toy Master"
Joined
·
629 Posts
try calling goodyear. I have bfg load range E's. I called BFG and they asked for year/make/model original tire loads and pressures. They then told me what to run with my new tires. I run 45/50.
 

·
Registered
Joined
·
162 Posts
Cooper Zeons 275/70/18 's that I run at 40psi.
 

·
Registered
Joined
·
529 Posts
275-65-18 Cooper Discoverer ST's; 45 all around, jump to 50 in the rears towing or bed loaded
 

·
Registered
Joined
·
42 Posts
I just dont understand why people run so much air in their tires. :confused: 35-40 psi is more than enough for every day driving. If you tow or haul heavy loads then sure, put 50 or so psi in them.
 

·
Registered
Joined
·
51 Posts
I have yokohama Geolanders (E) rated, I run them at 35 PSI whem i am not towing my 5er, when i am pulling my 5er i run 35 front 65 rear.
 

·
Registered
Joined
·
293 Posts
I'm running 35 all the way around!
 

·
Registered
Joined
·
162 Posts
Why is 40psi high? The tire is rated for 80 psi
 

·
Registered
Joined
·
122 Posts
The PSI levels you guys are talking about are incredibly low. I have had two 3/4 ton trucks which came with Load range E tires, the manufacturers recommended pressures on both were 65 front and 75 rear. I cannot imagine running one of these tires at 35 psi, you would be putting immense pressure on the sidewalls. The tire is designed to be run with high levels of air pressure.
 

·
Premium Member
Joined
·
1,750 Posts
I've read several places that tire PSI should be based off the vehicle recommendations, NOT necessarily the tire max as stamped on the sidewall. Maximum PSI wouldn't be needed unless your hauling a heavy load at the limit of the tires rating or pulling a trailer. Everytime I take mine to the dealer, they typically deflate my 'E' rated tires to about 34 PSI. Personally I prefer about 37 PSI. Works fine for hauling basic stuff, still rides nice and it's not hurting the tire.
 
  • Like
Reactions: Aaron713

·
Registered
Joined
·
73 Posts
Just added E range

Just installed G.Y. wrangler silent armor pro grade 275/70/18 E on stock wheels, started @ 50 psi ended up @ 65 psi @ all corners. Having a DCLB 4x4 with approx 600lbs in the bed @ all times tool boxes.Towing trailers often and running a plow on the other end.I'll give up some of the plush ride for a firm ride anytime in a work truck.
 

·
Registered
Joined
·
15 Posts
I have 295/65r18 Goodyear wrangler DuraTrac tires, and I run 60psi all the way around. For those of you guys only running 35,40,45,and 50. The min you should run is 50psi. You are putting severe pressure on your side walls, Load Range E tires are not meant to run that low of pressure in them. Once you change tire sizes you can throw that door placard out thats on the door sill. Thats no longer any good. Not only that but you are actually killing your gas milage. Because you are creating more rolling resistance. You are actually almost running a load range E tire flat at 35 and 40 psi. Not good. Olny reason for so much info. Goodyear tire and rubber engineer/designer. I've had the DuraTrac's for over a year on my truck before the wear even available to the public. Love those tires, ride good and excelent traction.
 

·
Registered
Joined
·
122 Posts
I've read several places that tire PSI should be based off the vehicle recommendations, NOT necessarily the tire max as stamped on the sidewall. Maximum PSI wouldn't be needed unless your hauling a heavy load at the limit of the tires rating or pulling a trailer. Everytime I take mine to the dealer, they typically deflate my 'E' rated tires to about 34 PSI. Personally I prefer about 37 PSI. Works fine for hauling basic stuff, still rides nice and it's not hurting the tire.
I'm sorry to say but you are way off base. The kicker is that the vehicle's recommended pressures are not based off of having Load D/E tires. You have upgraded your tire to a completely different standard which is incompatible with the original specifications.

For example, if you put an upgraded ecu into the truck which makes 25 extra hp but requires premium fuel, will you still run regular fuel because the manual says so???

The reason the dealer returns your tires to 34 each time you go in, is because they have to. Their rules state that they must set the tires at the factory specs each time the vehicle is in; it is a by-product of the Firestone/Exploder lawsuits. The dealer likely never pays attention to the print on the side of your tire stating that it is an Load E unit.

Despite your statement to the contrary, you are actually damaging the tires. Load D/E tires are designed to have the support of 60-80psi internally. They are not meant to maintain such low pressures, hence placing unintended sidwall loads. You running the Load E at 37, is like running your OEM tires at 15-20psi.

I hope you change your perspective, for the safety of yourself and those around you.
 

·
Registered
Joined
·
51 Posts
I am glad that I read this post, I wll be changing all of my tires psi. I hope that I am not listening to the wrong people.( gonna run them @ 65 psi)
 

·
Registered
Joined
·
162 Posts
How about one of the tire experts on here speak up..
 

·
Registered
Joined
·
1,542 Posts
i run 45 in them except when pulling my travel trailer. then i bump the rears up to 75
 

·
Registered
Joined
·
491 Posts
I've got SAa and run 45 front/ 42 rear (empty) and 46 front/50 rear (loaded heavy)
If you drive through dust or chalk your tires, then 1/4 mile on clean pavement, you can see if the contact patch is uniform/bulging center/sagging center...you want uniform for best wear and handling. If you run wrong pressure long enough, tread depth will give you the same information as chalk...
 

·
Registered
Joined
·
12 Posts
Ok. I just got an 08 dc Xsp with 305-50-20's and had to put new tires on. Where is the load rating on the tire? and my label in the truck says 32lbs.
 
1 - 20 of 58 Posts
Top