MPG and PSI what's yours?

[soldout]

Rigaud - you have modded your Yaris which might increase your MPG but the larger heavier tires subtract from your MPG.

My yaris is bone stock with the addition KNN filter and about 100lbs of stereo equipment.

Even if increase tire pressure only gave me .1MPG per tank increase Id still do it.

My Crosstrek hybrid has active grill shutters and aero wheels which are heavier then standard wheels. Doubt those 2 things combined even provide 1MPG increase but its still something the engineers are thinking of to squeeze every last .1 MPG

[Rigaud]

Originally Posted by soldout

Rigaud - you have modded your Yaris which might increase your MPG but the larger heavier tires subtract from your MPG.

My yaris is bone stock with the addition KNN filter and about 100lbs of stereo equipment.

Even if increase tire pressure only gave me .1MPG per tank increase Id still do it.

My Crosstrek hybrid has active grill shutters and aero wheels which are heavier then standard wheels. Doubt those 2 things combined even provide 1MPG increase but its still something the engineers are thinking of to squeeze every last .1 MPG

I read all three pages of this blog and not one person here mentions why tire manufacturers rate their tires with a max tire pressure. Theirs also a rating for maximum load on every tire which coincides with the pressure all depending on your vehicles weight. The correct way to set tire pressure is by looking at your contact area on the the road after driving but it's made easier with stated recommendations. Just because they rate a max of 45-50, etc... doesn't mean you can or should.

By the way, I get lower mpg now then when it was bone stock. Also I didn't ask a question here just observing peoples reasoning!!!