I know it sounds crazy, but I still.have the original spare. Because it's been underneath the Envoy, It has no weather cracking. It looks new. I understand they oxidize and dry out. I'm just wondering if it would be Ok to run on for a few miles if I ever get a flat. Only long enough to get to a shop.
Would you trust a 24 year old spare?
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Check the MAX Air Pressure marked on the sidewall (60 PSI...?) Pump it up to that level and coat the entire rim and tire with Goopy Dish Soap Water ...looking for any permeable tire rubber breakdown and Attmo leaks.
In Rust Belt Regions... the Mild Steel Rim may accumulate abrasive Rust adjacent the Sidewall interface an become un-repairable once it starts leaking air.
If it Holds Air and NO BUBBLES appear anywhere on it ...including after daubing the Soapy Mixture all over and around the base of the Schrader Valve Spigot... it will probably be Okay for the LIMITED 50 Miles such tires should be kept under for Emergency Flat Service.
Get yourself a Tire Repair Kit to Fix the Standard Tubeless Tire as well and get it back on the SUV sooner than 50 Miles goes by as well and ... "See The USA...in Your Chevrolet..." once again after topping off All Four Tires and Spare with Proper PSI.
In Rust Belt Regions... the Mild Steel Rim may accumulate abrasive Rust adjacent the Sidewall interface an become un-repairable once it starts leaking air.
If it Holds Air and NO BUBBLES appear anywhere on it ...including after daubing the Soapy Mixture all over and around the base of the Schrader Valve Spigot... it will probably be Okay for the LIMITED 50 Miles such tires should be kept under for Emergency Flat Service.
Get yourself a Tire Repair Kit to Fix the Standard Tubeless Tire as well and get it back on the SUV sooner than 50 Miles goes by as well and ... "See The USA...in Your Chevrolet..." once again after topping off All Four Tires and Spare with Proper PSI.