STOP Setting Your Truck Tires to 100 PSI! (You're Destroying Them)

👉 Access The Big Rig Master Manual: https://bigrigmaster.lovable.app/ Most truck drivers set every tire to 100 PSI and genuinely believe they're doing it right. It's a round number, it sounds safe, and everyone around them does the same thing. The problem is that radial tires — the kind on every Class 8 truck on the road today — aren't designed to run on a universal pressure. They're engineered as a load-and-inflation system, meaning the correct pressure depends entirely on how much weight each axle is actually carrying. Michelin, Bridgestone, and Goodyear have all published free, public load-versus-inflation tables for decades, and the TMC Recommended Practice RP 235 from the American Trucking Associations spells out the same principle: you weigh the axle, you find that weight in the table, and the table gives you the number. That number almost never lands on 100. Running the wrong pressure doesn't just wear tires faster — it changes how heat builds inside the casing, how the contact patch loads the road, and how long the tire structurally survives. Overinflated tires wear down the center of the tread and lose grip on uneven surfaces. Underinflated tires flex too much, generate excess heat, and can fail without warning. The steer axle, the drive axle, and the trailer tandem each carry different loads, and calibrating all three to the same round number means at least two of them are wrong by definition. The 100 PSI habit isn't stupidity — it's a relic from the bias-ply era that nobody updated drivers on when the industry switched to radials. This video breaks down how the inflate-to-load system actually works, why the round-number habit costs drivers real money in premature tire replacement, and what the manufacturer tables look like in practice. Some of the content in this video was developed with the assistance of AI tools and reviewed for accuracy against publicly available industry documentation. Always cross-reference tire pressure decisions with your specific tire manufacturer's load and inflation tables before making changes. #TruckTires #TirePressure #Trucking #CDL #TruckDriver #FleetMaintenance #TireSafety