Tires are one of the largest line items in any fleet budget — and one of the biggest safety risks on the road. A single blowout can mean a roadside emergency, a damaged trailer, a DOT violation, and thousands of dollars in downtime. The good news: most tire failures are the result of things you can control. Here’s how to get more miles out of your tires and keep them from failing when you least expect it.
Why Tire Care Pays Off
Beyond safety, tires are pure economics. Running them under-inflated burns extra fuel and wears them out faster; replacing them early wastes tread you paid for; a blowout on the road costs far more than the tire itself once you add the tow, the downtime, and any damage. A little routine attention protects all of that.
1. Keep Them Properly Inflated
Inflation is the single most important factor in tire life. Under-inflation causes heat buildup — the number-one cause of blowouts — plus uneven wear and worse fuel economy. Over-inflation reduces traction and wears the center of the tread.
- Check pressure when tires are cold, before the truck has run
- Follow the load-specific PSI in the manufacturer’s chart, not just the sidewall max
- Check all positions, including inner duals, which are easy to miss
- Consider a tire-pressure monitoring system (TPMS) for the fleet
2. Watch Tread Depth and Wear Patterns
Tread isn’t just about grip — the wear pattern tells you what’s wrong elsewhere:
- Center wear — over-inflation
- Both edges wearing — under-inflation
- One-sided wear — alignment or worn suspension
- Cupping/scalloping — worn shocks or bad balance
- Legal minimums: 4/32″ on steer tires, 2/32″ on all others
3. Rotate and Align
Regular rotation evens out wear so tires last longer, and proper alignment keeps them from wearing out one edge prematurely. If a truck is pulling to one side or the steering feels off, get the alignment checked before it eats a set of steer tires.
4. Inspect for Damage
- Cuts, cracks, bulges, or exposed cord — replace immediately
- Objects stuck in the tread
- Valve stems and caps intact
- Signs of dry rot or sidewall aging on older tires
- Uneven or mismatched tires on the same axle
5. Don’t Forget the Age
Tires degrade with time, not just mileage. A tire that looks fine can be unsafe if it’s several years old — check the DOT date code and factor age into replacement decisions, especially on trailers that sit.
When to Replace vs. Repair
A simple tread puncture in the repairable area can often be safely fixed. But sidewall damage, a blowout, exposed cord, or repeated slow leaks mean replacement — patching those is a false economy that risks a failure at highway speed. When in doubt, have a professional make the call.
ADM Handles Fleet Tire Service On-Site
ADM Auto Services provides mobile tire service and inspections at your yard across the Bay Area and Central Valley — pressure checks, rotations, wear and alignment diagnosis, and replacements as part of your preventive maintenance. And if you catch a blowout on the road, our roadside service gets you moving again.
Want tires handled as part of your PM program? Call ADM Auto Services at 510.552.4926.
Jermiah King is the founder of ADM Auto Services. A trained diesel technician, he brings deep hands-on experience from the oil field and advanced manufacturing industries, including robotics and PLC work. After relocating to California in 2017, he founded ADM Auto Services to pursue what he loves most — keeping fleets running with expert, reliable vehicle service across the Bay Area and Central Valley.
