Chalk test/PSI setting question

Hi, So I do the chalk test/setting in my garage at my apartment building. Its always 75 degrees (fall/spring weather). The correct PSI is 31 when the wheels are cold. My question is should I pull about 2 psi out and bring the resting "cold" psi dow to 29? I ask because when I drive it goes up about 2/3 psi when the tires get warmed up. And on a side question should I add about 2 psi in the winter when the average temp drops about 30 degrees? I have heard some people say just do the test and leave it all year, I understand thats a good rule for most people. I however have a little OCD and wouldn't mind getting this dialed in. I assume what I want it to have my tires running "hot" or while I'm out driving at 31 PSI correct? And thats what I should really be going after? Thanks for the input!

 

You’re over thinking it. You’re good to go.

 

Always adjust your pressure when the tires are COLD. This applies year round, summer, fall, spring or winter. Ignore the "hot tire" pressure.

Set it at 29 or 30 or 31.

Chances are you pressure gauge can't tell the difference between the 3 pressures. The gauge resolution and accuracy aren't that good.

 

2psi isn’t worth worrying about at all

unless you’re running drag slicks

 

Fill the tires with nitrogen

 

I use an 80% mix of N2 and other stuff. Works perfectly for non-race rides. Plus it is less expensive than N2

 

I’ve had some experience with this and have found the following mixture of gases performs quite well for tires:
Nitrogen — 78 percent
Oxygen — 21 percent
Argon — ~1 percent

 

I like a trace of Helium; lightens the over all tire weight.

 

I think you are on to something here..

 

lol I’ll give it a try

 

Hydrogens the lightest, going 100% hydrogen in your tires is known as the Hindenburg fill.