Hey guys...this might be a stupid question but my car didn't come with the manual so i don't really know. I've been putting 35 into my oem 19's but today my dad was filling air in all the tires for all the cars...he looked at mine and it said that the max is 50...so he ended up filling all 4 of my tires to 50. Would it be safe for me to drive on 50lbs of air in my tires? Btw i have kumho ecsta tires. Thanks for the help...

 

the tires can be filled to that pressure, but you want to follow whats recommended by the manufacturer. They take into account load, handling, blah, blah. Infiniti says 35psi front and rear.

 

50 is way too much. Stick to 35, which is the recommended pressure for our tires.

 

I like the pressure a little higher, in the ~37 range for the rear and 38 front.

 

Just do 35 psi all around, I do that for my stockers as well as aftermarket wheels.

 

Thanks for the info guys! Really appreciate it.

 

Tire pressure is based on the car weight and weight distribution, and is determined by the car manufacturer, regardless of tire size or make.

 

You can honestly tell the difference between 37 and 38 psi in your tires?

 

35, tires wear down best

 

Compared to 35, absolutely. I like slightly less in the rear to counter oversteer from early throttle.

 

as a fyi, for future reference too: you don't need a manual for tire pressure. open the drivers door and its on a sticker on the column frame of car. its like this for most modern cars, whether domestic or foreign.

 

35 psi front & back!!

 

I have coupe 19s on my sedan with 245/30/19s all around. I've been running ~33psi

 

I've never been able to find out why tire company's put the max psi on the
sidewalls of tires. That's just too confusing to non-car types and will invariably wear out the centers of your tires. I run 37 psi in all my tires front and back, but the manual does recommend 35. Explain this to you Dad and why....
Gary

 

do even if we have 20's or if you have 17's 35 is still best?