Small Fleet Tire Checklist for South Florida Businesses

Tires are a fleet cost you can schedule

For a landscaper, a plumber or a delivery business, a flat tire is a lost job, not just a repair. Three vans on the road means three sets of tires wearing every day in South Florida heat, and most small fleets only think about them when one goes flat.

This checklist turns tires into a routine: what the federal rules say, what to check and when, and how to keep a simple log. It's written for fleets of a few vehicles up to a couple dozen.

First: which rules apply to you?

Federal tire rules for trucks live in the Federal Motor Carrier Safety Regulations, and they apply to commercial motor vehicles (CMVs) as defined in 49 CFR 390.5. In short, the definition covers a vehicle used in interstate commerce with a gross vehicle weight rating or gross combination weight rating (or actual weight) of 10,001 pounds or more, plus some passenger and hazardous materials cases.

What that means in practice:

• Many cargo vans and pickups fall below 10,001 pounds on their own.
• A pickup towing a trailer can cross the line on combined weight.
• Rules can differ for work that stays inside Florida, so ask your compliance adviser how they apply to your routes.

We're a tire shop, not a compliance service. Use this as a starting point, not legal advice.

The federal tread minimums

For CMVs, 49 CFR 393.75 sets minimum tread depth, measured in a major tread groove:

For lighter vans and pickups outside the CMV rules, set your own replacement line. AAA's testing found tires worn to 4/32 of an inch took an average of 87 feet longer to stop on wet pavement than new ones, and AAA recommends replacing at 4/32. For a work van in our rainy season, that's a sensible fleet standard.

Measure in a main groove, not on a tread block edge:

Before every shift: the walk-around

Federal rule 49 CFR 396.13 requires a CMV driver to be satisfied, before driving, that the vehicle is in good working order, and to review the last inspection report. Even if your vans aren't CMVs, a 60-second walk-around is the cheapest habit a fleet can build:

1. Look at every tire, including the inside duals on any dually.
2. Look for low tires, cuts, bulges and screws or nails in the tread. Job sites and storm cleanup leave screws and nails on the road.
3. Report it, don't drive around it. A tire that's losing air today is a roadside call tomorrow.

Every week: pressure

Check pressure cold, before the first run, against the placard on each vehicle's door. USTMA recommends checking at least once a month with tires that have been parked for three hours or more; for working vans, weekly is better.

Why it pays:

• Fuel. Fueleconomy.gov says correct pressure improves gas mileage by 0.6% on average, up to 3%, and under-inflation costs about 0.2% for every 1 psi drop in the average pressure.
• Load. A loaded van on low tires builds heat, and South Florida asphalt adds more.
• Tread life. Under-inflated tires can wear unevenly, which shortens the set's life.

Our pressure and temperature tool shows how much pressure moves between a cool morning and a hot afternoon.

Every month: tread, rotation and alignment

• Measure tread in three grooves on each tire and write it down.
• Rotate on the interval in each vehicle's owner's manual. If there isn't one, USTMA's recommendation is every 5,000 to 8,000 miles. A busy van can hit that every month or two, so tie it to oil changes. Our rotation pattern tool shows the pattern.
• Watch for uneven wear. One-sided or feathered wear usually points to alignment. We offer wheel alignment at our Sunrise shop.
• Check recalls for each vehicle and its tires on NHTSA's site.

The South Florida factors

Three local conditions make the routine above matter more here than in many places:

• Heat. NHTSA explains that underinflation, excessive speed and overloading cause heat build-up in a tire. A loaded van on summer asphalt stacks all three, so the weekly cold pressure check is the habit that matters most.
• Rain. Months of afternoon storms put a premium on tread depth. A van on 3/32 may be above a legal minimum and still be a poor bet in a downpour on I-95.
• Debris. Construction sites and post-storm cleanup leave screws, nails and roofing debris on the road. Our post on storm cleanup nails covers what's repairable.

A spare and a plan for every vehicle

A flat is a lot cheaper when everyone knows what to do:

1. Check each vehicle's spare, or confirm what it has instead. Some newer vans and pickups carry a repair kit rather than a spare.
2. Check the spare's pressure in the monthly round.
3. Keep one number for roadside help in every vehicle, and make sure drivers know whether to change a tire themselves or call.
4. Log every flat: which vehicle, which position, what caused it. Patterns show up fast.

Buying for a fleet

• Match the load rating to the work. Vans and pickups that carry equipment often run LT tires with load ranges. Our LT vs P-metric guide explains what changes, and never go below the original load index.
• Standardize where you can. Fewer sizes and models across the fleet make spares and planning simpler.
• Plan replacements by your log, not by the next flat. Replacing in pairs or sets on a schedule keeps vans earning.

The one-page tire log

Keep one per vehicle, on paper or in a spreadsheet:

Three months of entries will show you which vehicles wear tires fastest, and why.

Keep vans on the road

For work vehicles and trucks, see commercial tires, or shop by size. In Miami-Dade, Broward and Palm Beach our mobile service can install at your yard, so vehicles aren't parked at a shop for the day. Shipping is free to the 48 contiguous states and DC for fleets elsewhere. Our post on rideshare tire mileage math covers the same numbers for a one-car business.