Best pressure for stock tires?

Hey everybody, I know this question has been asked repeatedly but I would like to know what the best tire pressure to run on my stock tires? I've read a little bit about the chalk test but if I dispense with doing that does anyone have opinions? My brand-new truck comes tomorrow 2017 TRD off road with SR5 upgrade package. Pretty excited! Color I decided on was quicksand . I know that anyone buying this truck should not be concerned about gas mileage but if proper tire inflation can increase it by even a little it is worth it to me. Let me know what you guys think.

 

Chalk test... I've read

 

Bridgestone duelers or BF AT?

 

Not 100% sure yet, However the printout does say all terrain tires

 

If it's the BFG AT's I like between 40-50 psi. The max on my toyo AT's are 80 (or 88?) higher than 50, you're asking for a rough ride.

My wheels are 18 so not sure if 20's would make that much of a difference.

Best rule of thumb is start at 40 and work your way up to where you like it. My sweet spot is 45-46 all around and 50 in rear when I'm towing.

 

My tires will be 18 too, I will post again on Tuesday. Any recommendations for an accurate tire pressure gauge?

 

I like the digital gauge from the green company that makes that green slime tire repair...I forget their name. But a regular pen gauge works just as well and you can actually see the damn readouts in the sun!! LOL

 

Doesn't your door jamb tell you the pressure for your stock tires?

 

Yes it does but from reading the posts on this forum I'm getting the idea that those pressures are lower than necessary and certainly reduce mileage.

 

I run my BFG Rugged Terrains at 45 lbs, seems to get better mileage and handles better than running them at 38 or 40.

 

I think it's trial and error kind of thing.

I am not sure which tire you have, but when I purchased Nitto Trail Grappler (e-rated, 80 psi max) I got three conflicting recommendations (for unloaded psi).

Discount Tire recommended 35 front and rear.

My local shop (pretty reputable shop where I live) recommended 65 psi front and rear.

Nitto recommended 38 in the front and 40 in the rear.

I started a pretty large survey at TundraTalk. The most popular psi seems to be 45. I went with the forum recommendation. I keep them at 45 (except during winter--because the temperature drops very drastically, I keep them at 55 most of time). 65 tends to be firm.

 

My tires are Michelin AT, only rated to 51 lbs, I have 42 in there now, was 35, will see how she rides, should I try 45 with those or no?

 

Go for it. If it feels too stiff, just go down but I wouldn't go any higher. That's kinda pushing it but hey see how it feels!

 

If it's stock, there is a label on your B-pillar that tells you what to fill them to. This is what is recommended by the manufacturer and what the fuel efficiency was tested with.

 

What is a B-pillar?

 

I am not sure if you are giving me a hard time... but I'll bite.

The B-pillar is the vertical structure at the end of the front door and what the rear door hinges mount to.

 

Not giving you a hard time, never heard the term before honestly, I just called it the door jam , yes, those numbers listed are what, like 30 in front 33 in rear? IDK, My logic leads me to believe I will get better mileage with more air in tires, so I bumped up to 42, who knows..

 

And here's a picture!

 

A, B, C & D pillars are the official Toyota names front to back. You may get more mileage but you'll wear out the center on the tire out faster.