i got the falken fk452s (245/35/19 and 255/40/19) about 2 - 3 months ago on my g35c with the 19" wheels.. and i just got a oil change at the dealer 2 weeks ago where they supposedly checked the tire pressure too.

so last night once i started my car, the low tire pressure light came on. i had a friend help me measure the tire pressure on the wheels and this is what they were:

rear left - 31.5
rear right - 30.5
front left - for some reason the tire pressure tool wouldnt fit an wasnt able to measure this one
front right = 29.0

on the driver side doorwell it said the tire pressure was supposed to be 35 for both front and back. but since i got new tires should this change?

do my tires all look like they have low tire pressure?

thanks

 

If you have a full size spare check that. It did it to me.

 

Did it get cold all of a sudden? That will do it too.

You can lose up to 2-3 pounds going from 75* to 25* easy.

 

oh yeah that might be what have happened.. its gone from 75 to about 45 over the last few days.

 

i have the same set up as you. i set my tire pressure to 38-40 all year long