irideti

Do all four of your car's tires lose air the same rate? Somehow my car's rear right loses approximately 0.5psi/month faster than other 3. Ok I know that's very minor but I'm just curious since I had that particular tire replaced after I found 2 nails near its sidewall 2 months ago.

Rich_Jenkins

Generally, "yes". I monitor and usually have to add a few PSI every few months. All my tires lose air more of less at the same rate. If you suspect a tire, it's a simple matter to spray some dilute dishwashing liquid in water around suspect areas. For instance in your case, maybe the valve. It's possible there might be a small leak there.

If nothing bubbles up, you could move to the rim, and lastly the tire itself (either side wall or tread, but that seems unlikely.)

I'd suspect the valve.

Bob Z.

Mine all lose the same amount. Try to tighten the valve core on it, and the others as well since it might need a little bit.