Originally Posted by pmarder

I want to lower the psi even more in order to improve the ride but I am confused when to do so. By way of example, this morning it was in the high 40's and when I started my car, the tire pressure system showed my front tires to be 33 while the rears where 34. After driving the car for half an hour and reaching my destination, all four tires read 36 psi. So the question is, do I want the tires to read 33 psi after being warmed up or 33 psi when I start (which would mean that I should leave them be)? Thanks for the help.

Originally Posted by pmarder

While I generally love my new 2014 ES, I must admit to being very disappoint with the firm ride. Coming from a 2005 ES330 (which I adored), I had grown to being used to a car with a comfortable and compliant ride. Instead, I find my new ES to transmit every bump and at times be almost jarring. The car originally was fitted with Bridgestone tires which I had swapped out for the Michelins. Those tires appeared to be over inflated at 38 psi when I received the car at which point the dealer reluctantly agreed to lower the pressure to 35. I want to lower the psi even more in order to improve the ride but I am confused when to do so. By way of example, this morning it was in the high 40's and when I started my car, the tire pressure system showed my front tires to be 33 while the rears where 34. After driving the car for half an hour and reaching my destination, all four tires read 36 psi. So the question is, do I want the tires to read 33 psi after being warmed up or 33 psi when I start (which would mean that I should leave them be)? Thanks for the help.

Originally Posted by jim256

33 when cold, standing for several hours, where it is normally located.