How I got an extra 25 miles for basically free

[soldout]

The other day I was watching a video by Chrisfix and he was explaining how important it is to change out the air in your tires from Winter to Summer air. Now I know this might sound crazy but he goes into detail in his video which I will link below. Basically Winter or colder air is denser and weighs more then Summer or warm air. Changing out the air in your tires will make your tires lighter and you will get better fuel economy.

So I let all the air out of my tires and refilled them on a day it was maybe 65F and filled them to 35PSI or 3lbs over recommended pressure. I also have a KNN air filter which I cleaned and reoiled.

Ive driven my Yaris for almost 180000 miles and I always lose the first gas bar around the 80 mile mark. After I did this experiment I have seen the first gas bar well over the 100 mile mark. This is highway cruising at 65mph with the cruise control, no special driving to maximize MPGs just cruise control.

Now the first picture is showing the 1st gas bar at 100 miles. The second picture is right after the 1st gas bar went away.

If you live in warmer climates this change in tire air temperature might not get you the same results as mine. If anyone tries this come back and post your results in this thread. I hope this saves you guys a lot of money and I wish I would have done this trick with the air a lot sooner.

https://www.youtube.com/watch?v=2t09qfrYwok