Summer in Southern California means road trips — the desert run to Las Vegas, Palm Springs, or Joshua Tree; the climb up to Big Bear or Wrightwood; or the coast cruise down PCH. All three put real stress on your tires: heat, speed, long miles, and a loaded vehicle. The good news is that ten minutes before you leave Long Beach can prevent the most common summer roadside disaster — a blowout in the middle of nowhere.
Here's the pre-trip tire check we'd run on our own vehicles.
1. Set Tire Pressure — Cold, Before You Leave
Check all four tires (and the spare) against the sticker inside your driver's door jamb, not the max number on the sidewall. Do it in the morning before driving, while tires are cold. Pressure rises 4–6 PSI as tires heat up on the freeway — that's normal and expected, so don't bleed air out of hot tires to hit the cold number. If you're packing the car full or towing, check the placard for a loaded-vehicle pressure.
2. Check Your Tread Depth
Tread is what stops you in an emergency and channels water in a summer storm. Do the penny test: insert a penny into the tread groove with Lincoln's head down. If you can see the top of his head, you're at or below 2/32" and the tire is worn out. Before a long highway trip is exactly when you want healthy tread — not after a near-miss in the canyon.
3. Inspect for Age and Damage
Walk around the car and look closely at each sidewall. You're checking for cracking (dry rot), bulges or bubbles, cuts, and embedded nails or screws. Then find the DOT date — the last four digits are the week and year the tire was made (e.g., "3922" = the 39th week of 2022). SoCal heat and UV age tires faster than most of the country, so anything 6+ years old deserves a professional look before a hot, fast, loaded trip.
Why heat is the real enemy: An underinflated or aged tire flexes more as it rolls, and that flexing generates heat. Add 140°F desert pavement and sustained 75 MPH with a full load, and a marginal tire can overheat and fail. Nearly every summer blowout we see traces back to low pressure, worn tread, or an old tire — all things this checklist catches.
4. Confirm Alignment and Balance
If your steering wheel vibrates at highway speed, the car pulls to one side, or you've noticed uneven wear, get it checked before you rack up 600 freeway miles. Bad alignment and balance wear your tires faster, hurt your gas mileage on an already-expensive fill-up, and make a long drive more tiring.
Match the Check to Your Trip
Desert Run (Vegas, Palm Springs, Joshua Tree)
Heat is the priority. Confirm cold pressures, avoid old tires, and don't overload without checking the loaded pressure. The 15 and 10 are long, fast, and brutally hot in July — marginal tires don't survive it.
Mountain Trip (Big Bear, Wrightwood)
Grades and braking matter. Good tread for descents and curves, proper pressure, and healthy brakes. If you go in winter, you'll want a 3-Peak snow-rated tire or chains.
Coast Cruise (PCH, San Diego)
Lots of stop-and-go plus open highway. Even tread wear and correct pressure keep it comfortable and fuel-efficient. Watch for slick roads on that first marine-layer morning.
The 10-Minute Pre-Trip Checklist
- Set all four tires to the door-jamb pressure, cold.
- Check and inflate the spare — and confirm you have a jack and lug wrench.
- Penny-test the tread on every tire.
- Scan sidewalls for cracks, bulges, cuts, and nails.
- Check the DOT date — replace tires older than ~6 years.
- Fix any pull, vibration, or uneven wear before you go.
Short on time before the trip? Swing by Ochoa's in Long Beach for a free pre-trip tire and pressure check — we'll tell you honestly whether you're good to go or need attention first. Call (562) 422-4449, visit Cherry Ave or Paramount Blvd (open 7 days), or get a quote if you need fresh tires before you hit the road.
Frequently Asked Questions
What tire pressure should I use for a summer road trip?
Use the pressure listed on the sticker inside your driver's door jamb, and set it on cold tires before you leave. Don't overinflate to 'be safe' for heat — tire pressure naturally rises several PSI as the tire warms up on the highway, and the door-jamb number already accounts for that. If you're loading the vehicle heavily or towing, check the placard for a recommended loaded pressure.
Should I check my spare tire before a road trip?
Absolutely. Spares lose air sitting unused and are the most forgotten tire on the car. Check that it's properly inflated, that you actually have a jack and lug wrench, and — for trucks and SUVs — that you have the key/tool to lower a spare mounted under the vehicle. Finding out your spare is flat on the shoulder of the 15 is a bad time.
How hot do tires get on desert highways, and why does it matter?
Desert pavement can exceed 140°F in summer, and a tire's internal temperature climbs higher still at sustained 70+ MPH, especially when loaded. Heat is what causes blowouts — an underinflated or aged tire flexes more, builds heat faster, and can come apart. Correct pressure and healthy, non-aged tires are your best protection on a SoCal summer drive.
Is it safe to drive on old tires in summer heat?
Tires degrade with age even with good tread. Most manufacturers recommend replacement at 6–10 years regardless of mileage, and Southern California's heat and UV accelerate that aging. If your tires are over 6 years old (check the 4-digit DOT date on the sidewall) or show cracking, have them inspected before a long, hot, high-speed trip.
Have this problem right now? Ochoa's Tire Service is open 7 days a week — no appointment needed for most services.