I am cross with my self for not checking my tyre pressures often enough.. I bought my car 8 months ago and admit to not checking my tyre pressure at all in that time. I bought the car with two new front tyres and then 6 months later replaced the two rear ones. Assumed that they would have been pumped up close to or exactly to recommended pressure when fitted at the dealership. Checked them today and all four of them where oddly exactly the same but at at 1.7 bar - side of the door states 2.3 bar on 225/50/17 tyres on my accord. I know pressure is lost over time, But 9 psi lower than they should have been! and recently I've covered quite a few miles in under inflated tyres. I'm sure most of you do in this forum but of you don't - Check your tyre pressures regularly ! Don't assume when you get new tyres fitted they are pumped up to the correct pressure before you drive away.