Join Date: Jan 2006
Location: Lawrence, KS - Rock Chalk
Car Year: 2016
Car Model: BRZ Limited - Manual
Transmission: 6 Speed Manual
Feedback Score: 10 reviews
The door stickers on all the scoobies I've owned have slightly higher pressure in the front for normal driving and increased rear when carrying a load. I've always assumed that was due to the motor being up front. Car manufactures pick a pressure that is a balance between good MPG's and good handling, ride comfort and wear. Playing with pressure lets you tune the ride to your liking as long as you don't exceed the tire manufactures MAX pressure on the sidewall. With pressure you can induce over or understeer. I think in general lower pressure gives more grip and higher less. It's really hard to say what is best for a particular vehicle because there are a lot of factors. The type of tire / brand alone makes it difficult to predict what you should use. I don't run the same pressure on my winter tires VS my summer only rubber. It all comes down to what you are looking for. For daily driving, I like to raise the pressure a few PSI-G over the door sticker to get a little better MPG's but that is at the expense of ride comfort, but I can live with that. That is usually my starting point. What amazes me is how many people think the pressure you should use is the max pressure on the side of the tire. Then they wonder why the ride is so harsh and the tire is wearing in the center.
2016 BRZ, 2010 Leg 3.6 R, 2013 OB, 2001 Forester S and 1999 Miata